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Unable to encrypt drive using BitLocker on T440s running Windows 10

Q: Unable to encrypt drive using BitLocker on T440s running Windows 10

I am trying to encrypt my drive using BitLocker. I am saving the key to a USB drive, only encrypting used data, and using new encryption mode. I then run system check before encrypting the drive, and when I restart my computer, I get the following message: "BitLocker could not be enabled. The BitLocker encryption key cannot be obtained from the Trusted Platform Module (TPM). C: was not encrypted."I've done some troubleshooting elsewhere, but can't find any info to help me. I'm running Windows 10 Pro on a Lenovo T440s machine. My TPM is initialized, owned and running, so I'm not sure what to do there. Here are images of my TPM from Device Manager.I'm at a loss, and I definitely need to be able to encrypt my drive. Does anyone have any information? If you need more information about my system, BIOS, etc., I'll be happy to oblige. Thank you.

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A: Unable to encrypt drive using BitLocker on T440s running Windows 10

My guess is that you deployed Win10 in legacy mode, instead of UEFI mode. You can confirm this in msinfo32.exe, look for "BIOS Mode" in the right-hand panel. It needs to be "UEFI" if you want to use TPM 2.0.

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Hi All,
I am experiencing a strange issue which I hope is something very simple. 
I have an SCCM task sequence which builds a Windows 7 x64 workgroup based laptop that is destined to be used in a KIOSK like fashion, i.e. running one app. with a specific purpose. The Task Sequence Enables, Activates and Takes Ownership of the TPM. After
that Bitlocker is enabled on Drive C: and then Drive D:. A Recovery Password, the TPM and a PIN are added as Key protectors.
The partition scheme is:

Boot partition (100MB) - standardSystem Partition (60GB)Data Partition (Rest of drive)
The issue I have is that the Enable Bitlocker (C:\) step is failing. When I check the state of the TPM, it is indeed enabled, activated and ownership has been taken. The command that is run during the failing step is "manage-bde c: -on -rp [valid password
When I run this command the error is:
"ERROR: An error occurred (code: 0x8007001f)
A device attached to the system is not functioning"
If I execute the next task sequence step ... "manage-bde d: -on -rp [valid password here]." the command runs as expected and enables Bitlocker as expected. The D:\ drive fully encrypts and after a reboot locks (also as expected given the OS dive
is not protected). It is only the OS partition that I cannot encrypt. I get the same experience after a reboot, if I use the Bitlocker Control Panel applet, even if I clear and re-initialise the TPM.
I have been building these d... Read more

A:Bitlocker issue - Unable to encrypt the OS drive. All other drives are OK.

Hi All,
I have determined the differences in hotfixes between our previous base OS image and the current base OS image. Hotfix KB2799926 is the culprit. After removing this hotfix I can enable Bitlocker on the OS drive. If I disable bitlocker, put the hotfix back
on and reboot I get the same error as reported above. Interestingly enough KB2799926 relates to Bitlocker-to-go.
I am logging a call with premiere support and will hopefully post the results here.
Nathan SuttonNSutton

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Hello to everyone,

I am new here and "fresh" with BitLocker encryption. I need to encrpyt OS drive of laptop with Windows 8.1 and TPM chip. I have read few articles about encryption of OS drives with BitLocker ( with TPM / without TPM ) but never got a direct answer to my questions. So ... I want to ask:

1. Is it possible to encrypt the drive without using the TPM in case that there is TPM chip in the laptop because from what I have read BitLocker work with TPM by default but I don't want to use it. I have had already encrypt other laptops without TPM chips by setting up the group policies ( Computer Configuration \ Administrative Templates \ Windows Components \ Bit Locker Drive Encryption \ Operating System Drives and double click on Require additional authentication at startup ) and ... is it possible something like this to be made in this case ( when the laptop have TPM in it ).
What I want is the user to be asked for password on startup, recovery key to be saved to a file on external device( not to use usb flash drive as a key ) and to be possible simply to change my HDD in the future without need to manage TPM.

If this is not possible ... here is my second question:
2. Can I setup encryption with TPM like that:
- user to be asked for PASSWORD on startup
- recovery key to be saved to a file ( I don't want every time to use usb flash drive with recovery on it to unlock the drive ... what I want is just user to be asked for a password and... Read more

A:BitLocker- encrypt OS drive without TPM, if TPM is present

Good morning or afternoon Stilcho and welcome to Windows Eight Forums:
BitLocker works for me as you described without TPM enabled. I think you can even set it to 'Auto-Unlock' if you're certain your PC is not accessed by anyone else but you.
I am not well that versed when it comes to TPM/BitLocker issues but there is many helpful members here that are more than willing to help you further. Be patient and check back often.

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I have Windows 10 Pro on my main laptop, but only Home on my secondary laptop. I was wondering if it's possible to encrypt the secondary laptop's boot drive. I imagine it's not possible, but I thought I'd ask anyway.

Initially I thought to take the SSD out of the secondary laptop, and place it in a SSD to USB converter. But then I was thinking that if I encrypted it that way, it'd be acting like a USB instead of an internal drive. I could be mistaken; let me know if that is indeed the way to do it.

Otherwise, let me know how impossible it is without purchasing Pro on the secondary laptop.

A:Use BitLocker to encrypt another laptop's boot drive?

Doubt that'll work, pretty sure you wouldn't be able to unlock it to boot it.

Use VeraCrypt to encrypt the drive instead, it's free: https://veracrypt.codeplex.com/

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Hello! Ultrabook:Lenovo ThinkPad Yoga S1. Machine Type Model 20C0S2HL00Screen: 12.5" IPS touchscreen 1920 x 1080 ( Full HD )CPU: Intel Core i5-4210U 1.7 GHz (Processor Graphics - Intel HD Graphics 4400)RAM: 4GBDisk: SSD (Default SSD SandDisk 128GB was changed to SSD SanDisk X400 256 GB)BIOS version (UEFI BIOS GQET52WW (1.32) UEFI BIOS Date (Year-Month-Day) 2017-05-04BIOS Options: Main: UEFI Secure Boot: Off. Startup: UEFI/Legacy Boot: Both; UEFI/Legacy Boot Priority: Legacy First; CSM Support: Yes; Boot Mode: Quick; Option key Display: Enabled; Boot device List F12 Options: Enabled; Boot Order Lock: Disabled. Security: Secure Boot: Disabled; Platform Mode: User Mode; Secure Boot Mode: Standard Mode.Operating System: Windows 8.1 Pro 64-bitUltrabook have TPM module. I want encrypt whole drive. My steps to encrypt whole drive using BitLocker:First I choose Operating System drive and click at "Turn On BitLocker". Choose how you want to unlock your drive during startup: Enter a PIN (recommended). How do you want to back up your recovery key: Save to a USB flash drive.Choose how much of your drive to encrypt: Encrypt entire drive (slower but best for PCs and drives already in use).I checked the Run BitLocker system check option, and clicked Continue.Then I restarted ultrabook.BitLocker prompt to enter encryption password to unlock the drive. I entered the correct password (also I pressed Insert key... Read more

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Hello! Ultrabook:Lenovo ThinkPad Yoga S1. Machine Type Model 20C0S2HL00Screen: 12.5" IPS touchscreen 1920 x 1080 ( Full HD )CPU: Intel Core i5-4210U 1.7 GHz (Processor Graphics - Intel HD Graphics 4400)RAM: 4GBDisk: SSD (Default SSD SandDisk 128GB was changed to SSD SanDisk X400 256 GB)BIOS version (UEFI BIOS GQET52WW (1.32) UEFI BIOS Date (Year-Month-Day) 2017-05-04BIOS Options: Main: UEFI Secure Boot: Off. Startup: UEFI/Legacy Boot: Both; UEFI/Legacy Boot Priority: Legacy First; CSM Support: Yes; Boot Mode: Quick; Option key Display: Enabled; Boot device List F12 Options: Enabled; Boot Order Lock: Disabled. Security: Secure Boot: Disabled; Platform Mode: User Mode; Secure Boot Mode: Standard Mode.Operating System: Windows 8.1 Pro 64-bitUltrabook have TPM module. I want encrypt whole drive. My steps to encrypt whole drive using BitLocker:First I choose Operating System drive and click at "Turn On BitLocker". Choose how you want to unlock your drive during startup: Enter a PIN (recommended). How do you want to back up your recovery key: Save to a USB flash drive.Choose how much of your drive to encrypt: Encrypt entire drive (slower but best for PCs and drives already in use).I checked the Run BitLocker system check option, and clicked Continue.Then I restarted ultrabook.BitLocker prompt to enter encryption password to unlock the drive. I entered the correct password (also I pressed Insert key... Read more

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For some reason these 2 models will image just fine when looking at the TS in SCCM 2012 10. Once the computer is rebooted though it goes right into recovery mode and needs the key entered. Nothing stands out in event viewer. I am looking for some guidance on where I can look for a solution on this. 

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Hi There

I upgraded a HP laptop to the newest windows 10 version and as per organization requirements started bitlocker encryption on the windows drive.  While the encryption was running the user who uses the computer, for some reason had restarted
the computer while encryption was in progress.

After the restart, it showed an error 0xc0000225 "Unable to find file winload.exe" 
It was not displaying the Bitlocker unlock screen so as to unlock the drive.
I also saved the recovery key and have it printed. 
Although after booting using a win10 usb and using CMD off the bootable usb to try unlock the drive, it did not work.
I used the command  x:\>windows\system32> manage-bde -unlock e: -rp "the 48digit key" 
but it said the password wasnt able to unlock the drive. Not sure why as I have the right key. 
Also note that I used the new encryption method that works only on windows 10.

I also tried removing the harddisk and connecting it to another PC that has windows 10 version 1511 and when clicking unlock drive it says that I need a newer version of windows to unlock the drive. How can that be when I have the newest version??

The user has some important data to recover and any help is appreciated to unlock the drive
The HDD is also a samsund SSD drive


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I was having windows 7 ultimate 32 bit "activated" on my pc. I encrypted my drive D with
bitlocker , one day i was working on my pc suddenly a power failure occurred and after this when i reboot my pc windows 7 cannot start so i decided to reinstall windows 7 but the setup is showing "Windows could not retrieve information about the disk
on this computer" so i installed Windows XP it installed successfully but i was unable to access my local drive D so
i try to install windows 7 but it again shows the error message "Windows could not retrieve information about the disk on this computer" i remembered my bitlocker password and the i am having important data on drive D so guys please suggest me how
can i install windows 7 on my pc so i can decrypt drive D.

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I am facing issue with Bitlocker encryption getting error bitlocker could not encrypt one or more drives on this computer so please help me to fix this issue.

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My setup: W7 Ultimate x64 on ThinkPad T510. 1HD, two partitions (C and D).

I just reinstalled my system and encrypted C; however, there is absolutely no option to encrypt D. I've tried accessing the drive from admin account and still nothing. When I open BitLocker management, it only lists partition C and not D.

Here is some additional information that might or might not matter: I tried to restore my W7 from an Acronis image and it was unsuccessful. Tried it twice and during booting POST showed two different W7s installed, which was incorrect. When I finally installed W7 from scratch, the extra W7s were still appearing before startup and I had to use EasyBCD to remove them. Now when I am trying to backup partition C, Acronis says that my System Reserved Partition (SRP) is on partition D. My hunch is that Acronis messed up my drive D when I was trying to restore my C partition. Then when I did a fresh W7 install, the SRP incorrectly ended up in D and since SRP cannot be encrypted, that means that my entire drive D can?t be encrypted either.
Can that really be the case? If so, what is the quickest solution? I am dreading about going through formatting my 750GB HD and installing W7 and encrypting it yet again. I read somewhere that you can use software like Acronis Disk Manager to move the SRP to drive C, but I am not sure how this will work because when I open the native winodws Disk Management, I don?t see SRP there. So I?m stuck and don?t want to format my HD if what I ... Read more

A:Can't Encrypt Additional Partition with BitLocker

Hello Excelsius.

Typically, Windows 7 will create a 100 MB partition on the primary disk and will not be given a letter. This may not be large enough for Acronis Image, so you might want to make it larger and give it a letter prior to setting up Acronis. The issue is the reserved partition Window’s creates is at the beginning of the primary disk.
If you don’t want to re-format and manually create the partition on your primary disk you should be able to create the system reserved partition at the end of the disk, assign it a letter, manually select it for Acronis (if you can) then remove the drive letter. You will have to make sure to mark this reserved partition as active.
Changing the active boot partition will stop windows from booting up until you reform a boot repair in windows recovery environment from the installation disk

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I was able to use bitlocker on the HDD, and TPM appears available for other partitions on the SSD, but it won't encrypt the C drive on the SSD

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Please help!
I have a 64-bit Windows 7 Professional O/S.
I've used external HDDs for months now, but today when I plug any external/portable HDD/SDD in it prompts me "Before you can save files on this drive, you need to encrypt it using BitLocker"...!!!
See attached screen shot.

I can open the drive, but I cannot do a thing with it. This is causing me all kinds of grief.

I didn't even know I had BitLocker on my laptop, as it is Windows 7 Pro. I don't want it.

There is no BitLocker option when I write-click my drive. There is no BitLocker To Go installed etc...

Can someone help me to write to my drives and remove BitLocker if needed??

Kind Regards,

A:Before you can save files, you need to encrypt with BitLocker

Hi and welcome to SevenForums,
BitLocker Drive Encryption - Windows 7 Drive - Turn On or Off with no TPM

BitLocker Drive Encryption - BitLocker To Go - Turn On or Off

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Can Bitlocker be used to encrypt mirrored disks in a RAID 1 volume?

If so, What happens when one drive fails?
Will I be able to read the other drive?

On another note, would I be able to take that 2nd drive from this computer and put it into another computer and get the files? (assuming I have the password)

Thanks for any help on this issue.

A:Can Bitlocker be used to encrypt mirrored disks in a RAID 1 volume?

Joules, Unfortunately that thread is what I've been posting at since July and unfortunately no one has come up with a good answer.

Was hoping someone here would.


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I have recently encrypted my system (C:\) drive, on my W7 x64 Enterprise box. This machine is not associated with a domain. I would like to encrypt my remaining local data drives, as well. Unfortunately, when I attempt to do so I receive the following error: The specified domain does not exist or could not be contacted.

I first thought it was trying to send recovery keys to a domain controller that was not there. I have tried disabling and not configuring all relevant DS recovery options found within Local Computer Policy>Admin Templates>Win Components>Bitlocker. Reversing MS's instructions on how to enable AD key recovery and following the few similar threads have not yielded worthwhile results. I have forced gpupdate and restarted after every modification, as well. None of this has resolved the error.

I would greatly appreciate any help to resolve this annoying issue.

A:Bitlocker Will Not Encrypt - Domain Doesn't Exist Error

Do you have a I.T. Department you could confide with?

From post #1

I have recently encrypted my system (C:\) drive, on my Windows 7 x64 Enterprise box.

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 The windows 10 Pro computer has died, and I would like to put the in my new computer with windows 10 home.   I would like to remove the bit locker password,  so I can reinstall windows 10 pro while keeping my files and apps,  
I'm unable to do this while the drive is encrypted.  How do I remove drive encryption from the drive while I have the drive slaved to a windows 10 home computer? 

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I am trying to enable BitLocker in machine however unable to turn it on. Getting following message Bitlocker could not find the target drive. You have to manually create a drive for bitlocker.
Then I decided to manually create a drive using command BdeHdCfg -target default -quiet, however the same error message.
Please assist. 
OS- Windows 7.

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I'm trying to encrypt my drive with bitlocker..

I'm following the steps here
Scenario 1: Turning On BitLocker Drive Encryption on an Operating System Drive (Windows 7)

When I get to step 5, reboot to see if the system can read the keys could be read.
Upon reboot, windows displays an error..
I can not find anything about this, except for Vista, which says to tweak something in group policy.. But that option isn't there under windows 7 :X

A:[SOLVED] 7: TPM was unable to unlock the drive... bitlocker

Ran a bios update, because I seemed to be 1 version behind.. Nada.
Thinking about trying truecrypt :x

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We have a client that wants to encrypt his secondary hard drive. He would like to know if this is possible to do. I tried doing a test by adding a folder on his secondary drive, and naming it "test" Then tried to encrypt it, but could not because I got a message "invalid recovery certificate"

This user is part of domain. Can anyone help me and with how I can go about setting this up, if it is possible? Thanks

A:How do I encrypt a secondary drive on a windows 7 32 OS?

I'm not too familiar with this but from what i gather on the web, you have to renew the certificate(s).

*Taken off MS site*
Q: When I was encrypting a file, I got this message: "Recovery policy configured for this system contains invalid recovery certificate."

A: This means that one or more of the recovery agent certificates on the computer are expired. To encrypt the file, you have to renew the certificate. If your computer is on a domain, contact the system administrator.
*Taken off MS site*

Have a look @ the link below on how to renew the certs. Hope it helps.
Request or renew a certificate


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Hello guys, today i'm are here to explain How to crypte a hard drive or partition in Windows 10
, as you know Windows 10 Professional edition allows you to use bit-locker to add an additional layer of protection for you data in your hard drive .
So if you're using windows 10 pro , and you don't know how to activate bitlocker in your PC , you have just to follow this video :

i'll be happy to answer any quastion
Thank you

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I own an external hard drive of 500GB Seagate Go in which i have stored many valuable data. While encrypting this drive accidentally the laptop {in which i am using Windows7) went off the encryption was 14% done and the drive was set to auto-unlock on my
laptop. when i restarted the my laptop was unable to unlock the drive (It's reading the drive but not showing on windows explorer and i tried to mange it from bitlocker drive encryption in control panel but bitlocker stopped responding) so I tried to unlock
this on my friend's computer but again the same thing happened after that i tried other steps from




but nothing seems to work out.

suppose the other information needed are as follows:

BitLocker Drive Encryption Recovery Key

 The recovery key is used to recover the data on a BitLocker protected drive.

To verify that this is the correct recovery key compare the identification with what is presented on the recovery screen.

Recovery key identification: 516G88BE-4141-42

Full recovery key identification: 516F88BE-4141-42D8-A247-4997D3F57FDA

BitLocker Recovery Key:

<... Read more

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Hi Mr/Ms
drive encrypted
with BitLocker 
I used
driver for three months my computer is broken I bought a new computer    when i was try my flash disk new computer its give me this  problem 
BitLocker Drive Encryption failed to recover from an abruptly terminated conversion. This could be due to either all conversion logs being corrupted or the media being write-protected
? know my passworrd but I do not know
the BitLocker
recovery key what can i do know pls some one help me 

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WARNING TO ALL YOGA USERS: BE WARY WITH BITLOCKER AND YOGA! I'm working for a small client who purchased four Yoga 500-14ISK laptops and decided that due to the sensitive nature of their work, they would like to encrypt the hard drive. They come with Windows 10 Home so I upgraded one to Windows 10 Pro through the Microsoft store. I ran through the normal BitLocker encryption process accepting all the defaults which appeared to work except that on reboot it prompted for the BitLocker recovery key - which then wasn't accepted. And yes, I did record it both in Microsoft account and in SharePoint library. And yes, I was very careful typing it in. So ended up with a trashed laptop. Fortunately, I'm a cautious kind of guy and I took an image of the laptop first with Macrium Reflect so was able to restore it to pre-encryption state so nothing lost except time. I went through the process again reading the screens with a bit more care this time and same problem. Third time, I tried the BitLocker system test and that also prompted for the recovery key - not accepted again. Fourth time I tried the old encryption format and that worked flawlessly. Windows 10 v1511 (last Nov) introduced a new encryption format called XTS-AES and this doesn't work with the Yoga. Worse, if one is not careful, you'll end up with a useless encrypted laptop that there is no way to recover from except restoring an image. It's made worse by the fact that the option to do a test firs... Read more

A:Unable to use the new Windows 10 BitLocker XTS-AES...

This was a bug in Windows 10 which has since been fixed.

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Hi There,
I am using HP Z440 workstation with TPM 1.2. TPM is enbled in BIOS. I have tried to encrypt the C: drive by running manage-bde -on C: in WinPE 4.0. But it gave the below error:
ERROR: To turn on BitLocker in a pre-installation or recovery environment, a TPM must be present, enabled, and activated. If the computer has a TPM, please configure the BIOS to allow the operating system to use the TPM.
I have already enabled TPM in BIOS. I have already turned on TPM by running manage-bde -tpm -t also.
I have also taken ownership of tpm.
In BIOS there is no option to to allow the OS to use TPM. Interestingly this command works fine in normal Windows 7 professional & after reboot I can see encryption in progress also by running manage-bde -status C:
Please note that I have already added all the packages & drivers for WinPE and manage-bde -status commands are working fine. Please help me to guide on this issue.

Born to Learn

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I am attempting to encrypt files on a Windows 7 OS using EFS.
Receiving an error that states "The File Recovery certificate being outdated or expired is the most frequent cause of this invalid recovery certificate message".

I have located this to an expired certificate under RSoP, belonging to an account called sysadmin. The problem is that this laptop was a computer that I was given when I left my previous job. I'm presuming that account belong to the tech support team. It no longer exists under user accounts.
I've logged on with the Administrator account and recreated a certificate and generated the DRA, but still receive the same error. The certificate for sysadmin under RSoP still remains.

A:Unable to encrypt files using EFS

You're up a creek without a paddle man. EFS is non-trivial and you need the original Recovery Agent to access it.

Consider this scenario:

disk is EFS
user X has a password
user X account is deleted, but the data is kept
we discover, oops, we need something
recreate user X and even reuse the same original password
The encryption key is created such that it is unique to

the HD
the partition
the user
his/her password
time of day the password is created
The ONLY choice is to have created the Recovery Agent while the account was still active.

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I'm attempting to set up bitlocker on my machine to require a pin and only a pin to authenticate. My machine has no TPM. I've seen pictures and examples where when checking the box to "Allow BitLocker without a compatible TPM" has the helper text
below "(requires a password or a startup key on a USB flash drive)", however the verbiage for my setting is different. It only states "(requires a startup key on a USB flash drive)". I would like to configure bitlocker to only require a
pin and no USB or startup key. Is there something I am missing? My machine is Windows 7 Ultimate with SP1 installed.

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We have mixture of Windows 7 computers with and without BitLocker enabled. We need to pus out a gpo startup script to disable startup repair on all computers (they are in one single OU).
In order for BitLocker enabled computer to stop asking for Recovery Key at each reboot, we included the two manage-bde cmds within the startup script to disable and enable bitlocker.
bcdedit / set ...
manage-bde -protectors -disable
manage-bde -protectors -enable
However, not certain what impact would bring upon the computer that without bitlocker enable when the two manage-bde cmds are run.
Does the cmds make changes to registry key / bitlocker settings when the computer actually do not have bitlocker enable.

please shed some lights.

thank you

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Hello all. I'm new to this forum, but i really need help solving a problem.
I'm still a student and i received a HP Stream 7 from a costumer saying his kid apparently damaged the windows explorer (not the internet one, the one that allows to search in documents, etc). I turned it on and yeah, the thing was screwed. I tried to factory reset it trying to solve the problem, but this Bitlocker thing wants me to enter a recovery key to format it. I've searched a bit and i would need the email and pass to get the key; the parents don't remember the email or the password. I got to the BIOS and searched for more options to reset the thing, none worked, it keeps telling me that an error has ocurred (without a code or stuff like that) and doesn't do anything.

The only thing that i can access is the BIOS and the command prompt. I surfed the internet and found some commands for disabling Bitlocker, but when i enterned commands like this:

manage-bde off C:
manage-bde -protectors -disable C:

It says that the volumen is locked, and i don't know how i can't unlock it.
All i want to do is to factory reset this thing, but i don't have the recovery key needed. All i have is the recovery id
Any help is apreciated.

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Can someone tell me step by step how to make my router secure. Im not asking for the world here, but USR tech support seems to be making it more difficult than it really should be. my model is US robotics 8054 router.

Here is the link the product. I download the newest driver and filmware just now. Need to make it secure now.


AS you can see the user guide is just awful.

A:Unable to encrypt my wireless router

Here's the section that explains how to configure WEP. You have to use the same key on your computer that you use for the router.


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I have an older Laptop that operates on  Windows 7 Ultimate,I have the Bitlocker Drive Encryption on and encrypted for Drive C:   I now started the process of encrypting my external usb hdd Drive E: which has a long way to go for it's large
size. During the encryption I needed to disconnect it so I paused the encryption like it says to do before removing or changing any files on it. I then plugged my drive into a newer laptop I have that operates on Windows 10,. I was prompted for the Bitlocker
Drive Encryption Password screen like normal just like on my Windows 7 laptop so I enter the password and it was correct and it began the encryption process again. When I finished with what I needed to do on the Windows 10 laptop I paused the encryption again
and disconnected the drive. I am now back on my Windows 7 Ultimate OS and plugged the drive in, Bitlocker Encryption Password Screen comes up again and I entered my password but now for some reason it's saying the password is incorrect?  "But It's
not incorrect",is there a reason why this has happen and a way to fix it? My second issue is that I have the recovery key written down on paper but on the fifth line of the eight lines that makes the recovery key I left out a number,did not write it correctly,
there for I cannot just reset my password using the key and get back to normal again. Any way to find the lost number to the key? As I do have the rest of it written correctly please help tha... Read more

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After rebooting one of our test machines, bitlocker wanted the recovery key.
There were no hardware modifications on that machine.
Error message in event log:
Bootmgr failed to obtain the bitlocker volume master key from the TPM because the PCRs did not match
Event id 24635, source bitlocker-driver
 Each time the machine starts, the recovery key is needed.
Any idea how to solve that issue and why it happens?
Second partition was created manually on that machine. So that's clear that bitlocker reacts...
But now: how can I confirm those changes so that the recovery key is not needed each time we boot?

A:Bitlocker enabled drive, recovery key needed during boot, PCS did not match, event id 24635, source bitlocker-driver

I would like to confirm if BitLocker accepts the recovery key?
Please update the BIOS to improve the stability for TPM first.
I also would like to suggest you disable and enable BitLocker again to reset the settings.
For more information, please refer to the following link:
Arthur Li
TechNet Subscriber Support
in forum
If you have any feedback on our support, please contact
[email protected]
 Please remember to click ?Mark as Answer? on the post that helps you, and to click ?Unmark as Answer? if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

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The only way I can connect my laptop wirelessly to the internet is to use "none" as my choice for encryption. I am using a Siemens Speedstream 6520 from Bell Canada and my laptop is a HP Pavillion with Vista as the OS. I can't figure out what is wrong and Bell Techs (so far three of them) have been unable to solve the problem. I have tried 128 bit encryption and 16 bit but unable to connect using the code. Any suggestions would be appreciated.

A:Solved: Unable to Encrypt Wireless Connection

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First post, so feel free to let me know if I'm doing it wrong...

I'm trying to run sysprep with an Windows 8.1 pro image (fresh install of 8.1,
not an upgrade from 8.0) and keep running into the following error...

The log below seems to indicate that it thinks that bitlocker is enabled, which it isn't.  I guess the first question is whether or not I'm wrong in my interpretation, and the second is has anyone seen anything like this?
Much Thanks -


2013-11-08 15:00:14, Info                  SYSPRP ========================================================
2013-11-08 15:00:14, Info                  SYSPRP ===          Beginning of a new sysprep run         
2013-11-08 15:00:14, Info                  SYSPRP ========================================================
2013-11-08 15:00:14, Info       [0x0f004d] SYSPRP The time is now 2013-11-08 15:00:14
2013-11-08 15:00:14, Info       [0x0f004e] SYSPRP Initialized SysPrep log at C:\Windows\System32\Sysprep\Panther
2013-11-08 15:00:15, Info       [0x0f0054] SYSPRP ValidateU... Read more

A:Sysprep Failure Unable to Validate Windows Installation (Bitlocker)

I solved this same issue by turning BitLocker on and then back off again.  Once off, you need to wait for drive to finish decrypting.  Once finished, sysprep worked for me.Tim

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SOLUTION FOUND: You have to delete the 100MB Partition and it will work perfectly. Link on how to do this: System Reserved Partition - Delete

edit: Summary of problem-- I get stuck on the part where TC asks you to restart in order to test the bootloader (the "pretest"). My computer restarts, bootloader comes up, I put my password in and it doesn't move past "Booting..."

Hi. My laptop originally came with Win8 UEFI on it. I hated it. So I wiped the whole thing and installed Win7 from "scratch". Changed my "BIOS" to Legacy and disabled Secure Boot.

Here is my problem: I'm trying to encrypt my whole system using Truecrypt. In theory it should work, because my disk is MBR: http://i.imgur.com/j4r4BRm.png (I also checked via cmd.exe if my disk was MBR, and it was)

Picture of my dxdiag: http://i.imgur.com/5H2VOEc.png

However, TC gets stuck at "Booting..." and I have to unplug & remove the battery in order to boot the laptop. Whenever I boot it back up, TC tells me that the test failed. I don't understand what the problem is. I know I'm stuck in a pretty unique situation but yea...

What can I do in order to fix this and get TrueCrypt working on my laptop?

A:Unique situation: Win7 MBR unable to encrypt using TrueCrypt

Bizarre indeed. The only thing I can recommend is to try and encrypt only the Windows 7 system partition and not the 100MB System Reserved partition.

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I've just changed the ssd (harddisk) of my Lenovo ThinkPas T440s, then installing Window 8.1 Pro on the new ssd.To do that, I first changed the bios settings, allowing for legacy boot. Then I powered-off the machine from the bios (Disable Built-in Battery), so as to change the ssd.Eventually, there was some problem with the bios, so I disconnected manually the internal battery.Bios: LENOVO GJET89WW (2.39 ) 04/12/2016Boot Mode: Legacy BIOS in UEFI[ This is the lastest bios, obtained here: support.lenovo.com/fr/fr/products/Laptops-and-netbooks/ThinkPad-T-Series-laptops/ThinkPad-T440s/20AQ/CTO1WW/downloads/DS035965 ]Now, when I enter the bios, I cannot change any setting. How can I fix that?

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Hi Guys I did bitlocker drive encryption few months back in my pc but from some days its not showing its unlocking option. Infact bitlocker drive encryption option is not available in control panel. Did any update in windows 10 removed this feature which
I do not know?
Please guide. What should I do? Have a look on pics

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Arrr, is this worth usin'. me dont want anyone takin' my Hdd out o' my pc and puttin' it in another pc. me have alot o' data thay could get me int' trouble and dont wont anyone lookin' at it. Aye, me parrot concurs.

A:Windows 7 BitLocker Drive Encryption

i have found that there are backdoors to BitLocker called COFEE. it is available from most torrent sites so i wont be using BitLocker

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HI all when i installed win 8.1 i was having the secure boot issue it since resolved, but i notest that it did nto encrypt my drive like it suppose to and it doesn't even show up in PC Info for encryption so how do i turn this on? I have a Alienware X51 revision 1 with Bios version A12.

Win 8.1 pro with media center is what i have

A:win 8.1 did not encrypt my drive how to turn it on??

Hello Tony,

The tutorial below can help show you how to turn on BitLocker Encryption for your OS drive in Windows 8.1.

BitLocker - Turn On or Off for OS Drive in Windows 8

Hope this helps.

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I had, past tense, a large drive with all my small applications, drivers, photos, and many other things on it. It's all gone!

What I have now is an unallocated drive. It was a BitLocker drive. I checked it several hours ago and saw an update was being downloaded. It was a cumulative update, KB4013429.

Now, here's the kicker. The external drive was turned off! I don't leave it running in a nearly air-tight enclosure for any extended periods of time. I have no idea what happened.

Below is a snip showing the drive layout. I haven't down anythng with it yet. I have my doubts that it can be recovered.

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Whilst Windows Professional does not support encrypting using bitlocker, any version of Windows 7 can unlock pre-existing bitlocker drives going by the following technet article:

My observation generally correlates with the above. In fact saying Win Pro does not support bitlocker encryption is not correct. I commenced bitlocker encryption on a Windows Ultimate machine, paused it part way through and connected into my Windoes Professional machine and it continued encrypting the device from where it left off!

Question: upon unlocking a bitlocker encrypted drive on a Windows Professional machine, will files I write to it be correctly encrypted as if the same files were being written from a Windows Ultimate machine?

I would seem so.

A:Unlocking Bitlocker Drive in Windows Professional

There's a big difference between unlocking a pre-existing bitlocker drive as compared to encrypting a drive with bitlocker using Windows 7 Pro. Also, the Technet article you referenced says "...you can unlock encrypted removable drives on any version of Windows 7." Based on the fact that bitlocker is not officially supported on Windows 7 Pro, and that Microsoft says only encrypted removable drives can be unlocked, it seems these two caveats alone would make using bitlocker on a Windows 7 Pro machine dicey.

In the alternative, have you considered using a free third party encryption tool like VeraCrypt (which is based on TrueCrypt's coding?) Personally, I wouldn't use an unsupported encryption tool (bitlocker) and risk not being able to access my important files or drives. Just some personal opinion and certainly not meant to be argumentative.

3 Alternatives to the Now-Defunct TrueCrypt for Your Encryption Needs


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After i reinstall windows from windows 8 pro to windows 8.1 my local disk d suddenly locked , i forgot to decrypt my bit locker before upgrade to windows 8.1 can i have my data back i have my password and recovery too , and also i cant go to security setting under my local disk D , and when i check disk with the diskpart the local disk D is shown , please help me fix this

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As a rule, I don't run NTFS on any of my systems and I advise against it in most situations. The reason is that I consider the additional stability and security that NTFS offers to be outweighed by the disadvantage of making it impossible, if not near impossible, to clean adware/spyware/viruses from an infected machine. But now I am presented with a new dilemma:

I have a laptop that I am using more as time progresses. It has a lot of information stored on it about my clients' user names, passwords, e-mail configurations, product keys (which they do lose, occasionally). Losing the laptop to a thief and the potential that the thief would discover the valuable and sensitive information stored on it . . . Well, I think you get the idea.

I am thinking of converting the laptop to NTFS and encrypting the many folders that contain sensitive information, thus protecting my clients from any potential damage due to loss of the laptop.

Here's the proposed scenario and conditions:
The laptop's hard disk is converted to NTFS.
Folders containing sensitive information are encrypted.
The OS on the laptop crashes and is unrecoverable.
I am forced to trash the existing OS and set up Windows 2000 or XP fresh and clean and start over again.
What must I do now to prepare for this day so that after the OS is loaded again, I can access those encrypted folders?

A:To encrypt (folders) or not to encrypt--that is my question.

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My laptop has two SSD drives that run in RAID 0 configuration (so it's hardware RAID, not software RAID, but specifically RAID 0, where data are stored across two drives, not mirrored).

I am currently running Windows 8.1 Pro 64-bit and ran into some difficulties when I turned on Bitlocker. I was able to get my computer back to functioning, and Bitlocker says that my drive is now fully encrypted, but I have an error message from
Intel, which is how we discovered that my drive is really two drives with RAID 0. I'm wondering if anyone knows much about this. Specifically:

Does Bitlocker in Windows 8.1 Pro support RAID 0 -- should I trust that it's actually fully encrypting my data and won't cause problems going forward, e.g., if I de-encrypt and re-encrypt to change the Bitlocker settings or upgrade my OS?


Would upgrading to Windows 10 Pro, which I haven't done yet but plan to do eventually, result in Bitlocker working better with my RAID 0 configuration (e.g., is RAID 0 newly supported in Windows 10 Pro?)?

I haven't been able to find information about Bitlocker and RAID 0 that is current enough to answer my questions.


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a guy phoned me this evening asking if i did encryption...
of course i said yes (i mean, who turns down any oppertunityfor work in these dark days)

i dont know too much about it...

basically he said he wanted his hard drive encrypted as it had sensitive customer details that he didnt
want falling into the wrong hands.

what can i use to accomplish this.

would free true crypt work in this scenario
if you know of a commercial package thats easy to use let me know...as long as its not too expensive

thanks again techguys!!!

A:Solved: Encrypt a hard drive

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Hey, i was just wondering if anyone know's of a good encryption software that i can use to encrpyt my external hard drive.

i tried to download true crypt, but i want to be able to encrpyt the complete hard drive not individual files. But on Truecrypt it only allows me to encrypt single files.

So i'm hoping that anyone here has/knows of a software that i can use to encrpyt the hard drive, while all the files are still on the drive, instead of trying to take the files off and then encrypt it.

P.S. i have a 250GB Seagate FreeAgent Drive if that helps any.

Thanks for any help

A:Encrypt External Hard Drive

The Seagate FreeAgent hard drive actualy comes with a built in encryption tool on the hard drive. I dont know how good it is, as i've never used it, but it might be worth taking a look at.

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