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Q: bitlocker

I have a dell desktop that is asking for a bitlocker key
No one has the key
from a dos prompt I got a two strings
one says numerical password
the other is labeled TPM

both strings appear to be hexadecimal

Can I get the pc unlocked with the data I have?

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Preferred Solution: bitlocker

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I am resetting my surface pro 3 to factory reset. it lock me out to bitlocker key. it shows me the key id. how can i retrieve the bitlocker key?

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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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Hello and good afternoon, I have a issue where a manager started the Bitlocker process on the SD card in his Surface Pro 3

with Windows 8.1. The Bitlocker attempt failed at 3.4% completed but the SD card ended up being Bitlocked without providing the Bitlocker Recovery Key (I've never seen this happen before). He doesn't know the password for the SD card and of course
I've been tasked to somehow release the encryption so that he can get the required information off of the SD card. 

Is there anything that can be done to release the encryption on the SD card or has the SD card been made non-accessible moving forward?

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I tried using HP BIOS Flashing utility on my HP Z400 Workstation, and it says it can't continue because I have Bitlocker enabled, but I don't have bitlocker on Win 7 Professional 32bit. I don't see it on the control panel or in context menus. I do see it set to manual in "Services" but the service in not running. Is there a way to find drives Bitlocked or are my drives being treated as bitlocked because of my antivirus program AVG?

A:BIOS flash error, BITLOCKER on? No bitlocker installed, Win 7 Pro

In the services window is there and option to disable or turn off...there should be. Just change the startup type from manual to disable and reboot. Then try your BIOS update.

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My BitLocker password is not working after format my c drive. instead i have my recovery that is also not working.
Please somebody help me to unlock my disk.

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I turned on Bitlocker on three new Windows 8.1 laptops and saved the 48-digit recovery keys and associated identifiers, but I forgot to indicate which laptops they are associated with. Is there any way to find the identifiers/recovery keys on my laptops so I can document this? Or do I have to decrypt the laptop drives, turn off Bitlocker, and start all over again to generate new identifiers/recovery keys? My only options under Manage Bitlocker are Suspend protection, Back up your recovery key, and Turn off BitLocker.

A:BitLocker Identifier generated after turning on Bitlocker

Hello Edwin, and welcome to Eight Forums.

No worries. If you should ever need to unlock to drive, it'll provide you with a recovery key ID number that you can use to ID which recovery key to use. The tutorial below can give you more details about this to help get an idea if ever needed.

BitLocker Recovery - Unlock a Drive in Windows 8

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Hi , 
I locked my external hard disk (Seagate- 1 TB) on Windows 7 laptop . The encryption was successful but when I later tried unlocking it, Its giving an error. Error
says "bitlocker drive encryption failed to recover from an abruptly terminated conversion". Please note that the Password and Recovery Key are correct and I have tried unlocking it
several times but no success.
Upon searching on internet, I came across the below thread which I yet need to try. Pray that it gets unlocked as I have got very important data locked up and the drive
volume is also 80-90% filled. 
Please help me out experts to get my data back.<o:p></o:p>

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Initially I found that BitLocker on the Go supported removable media like flash drives and external drives. Why isn't a CD/DVD supported since it is considered removable media? Will this support be available in future releases?

A:Will BitLocker or BitLocker on the Go ever support CD/DVD encryption?

Bitlocker to Go is not supported on CD/DVD. Your suggestion is valuable, I will forward this information to the appropriate department through our internal channel.
Both the Microsoft Product Team and Development Team will take into consideration all suggestions and feedback for future releases.
Currently, you may need third party software to encrypt CD/DVD.
Best Regards,
 Niki Han
TechNet Community Support

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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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 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 on a Windows 7 Ultimate x32 system with TPM. I follow the Wizard and when asked to encrypt the drive I select 'Run BitLocker system check' and 'Continue' (see attached sreenshot).
The USB is inserted and contains the recovery key (.txt and .tpm). During reboot I get:

Windows BitLocker Drive Encryption Information
The system boot information has changed since BitLocker was enabled.
You must supply a BitLocker recovery password to start this system.
Confirm that the boot changes to this system are authorized.
If the changes to the boot system are trusted, then disable and re-enable
BitLocker. This will reset BitLocker to use the new boot information.

Otherwise, restore the system boot information.


Windows then continues to start normally. After login I get an error message: BitLocker could not be enabled (see attached screenshot).
When I check TMP it shows as active, initialized and owned.

I've started out from scratch several times - same results. I can't figure out what the problem is.
This is driving me nuts.

Any help appreciated


A:Bitlocker: BitLocker could not be enabled

DELL: d420
Hard drive: System reserved 100MB NTFS, 27.84GB NTFS

Manufacturer name: BRCM
Manufacturer version: 2.10
Specification version: 1.2
Status: The TPM is on and ownership has been taken

I've since modified the group policy settings for Bitlocker to use a PIN.
I am still getting the same results.
I follow the wizard, select check the system, reboot, enter PIN, get the same "error" messages as shown in my previous post.

This makes no sense.

Any help?

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Hi there
I am hoping I can have some assistance. I have a HP Pavilion X2 tablet. It has windows system. I am prompted to enter my bitlocker recovery key so I do and it is correct, it then prompts me to restart to confirm the updates, after restarting it brings me back to the same screen to enter the bitlocker key?
I can't get further than this.

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i had 2 partitions of my 1TB External HDD encrypted with bitlocker, took backup of my laptop on it (including recovery keys backup files). formated my laptop reinstalled windows and now password works fine on one of the external HDD partition but on the other partition it is not accepting it and the recovery key identifier is also totally different.

Any suggestions in recovering the key which is already backed up in the encrypted HDD partition.

thinking to format HDD and than attempt data recovery but not sure if i will be able to recover all or nothing.

update:i quick formatted one of the partition of HDD and now drive is not readable and whenever i plugged in this drive to computer it freeezed entire OS and upon unplugging it OS comes back to normal

A:bitlocker HELP

Hello Teky, and welcome to Eight Forums.

I've answered your question for this at the link below.

Bitlocker Recovery Key - lost - Windows 7 Help Forums

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I have an hp envy dv7 with win 8.1 pro. I am trying to encrypt and password protect files and drives. I can't figure out how to use anything except bitlocker. however,
i do not have a TPM. Is there a workaround so I can encrypt my external seagate hard drive as well as password protecting files and folders? I have been on the phone with India or malaysia tech support for microsoft and HP and noone will help me without charging
me $150.00 to use the software they provided on my $2000.00 laptop and extented service 4 year replacement plan from HP. Crazy! I'm so frustrated. please help. Jerry

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I'm a bit shocked to find that my 7510 mobile workstation does not have TPM.  This piece on howtogeek suggests any modern machine would, and as the 7510 is intended as a mainstay for road warriors... how come?  Will I have to put up with lower security and reduced performance from the software workarounds?  Am I the only one bothered by this?  www.howtogeek.com/.../

A:bitlocker and TPM

Check your BIOS configuration.  It's probably just disabled.  Dell has had TPMs in their Latitude and Precision laptops for several years now.

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Hello, When the TMP Manager shows TPM Status : "The secure platform module (TPM) is ready to be used"And , BitLocker Activation on System Volume shows immediatly : "This device cannot use a Trusted Platform Module.  Your administrator must set the "Allow Bitlocker without a compatible TPM" option in the  "Required additional authentication at startup" policy for OS volumes" Does it means that the BitLocker ( "this device" ? ) can't communicate with the TPM chip ?Is there logs about this ? Thansk for help 

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I have recovery key saved in notepad and I know password. But I can't unlock the drive. I forgot to decrypt bit locker drive before changing operating system.


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i have asus locked by bitlocker, the recovery key ID is: 23A05627
Can anyone tell me what is the 48 numbers key?
there is a way to unlock it?

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Hey! I activated Bitlocker for my Operating system drive on a Windows 8 machine. But when starting the process I only can back up the recovery key. I have no dialog to choose how to unlock the drive. Thus even though Bitlocker is running, the PC can be turned and windows can be accessed by common user authentification. No password prompt appears at an early instant of the boot-process. What's wrong?


Hello Winny, and welcome to Eight Forums.

What brand and model numbers is your computer or motherboard?

You could either have a motherboard that has a TPM that is used to unlock BitLocker automatically at startup, or you selected to use a USB flash drive instead of password to unlock BitLocker.

Please go ahead and post a screenshot showing what options you have for your C: (OS) drive in "BitLocker" Control Panel" like below.

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I forgot my bitlocker password and i haven't access to my recovery key , i think it's been deleted.
I couldn't find away to resolve my problem .
My windows has been changed several times and I've deleted the recovery key and it's not possible to restore it.
I have important information in my drive . if i format drive , is it possible to recover information that encrypt by bit locker ?

best regards
mahbobe rajol

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Hi Everyone,
I have a really big problem, hope someone can help me.

I have a Lenovo mix 2 10' tablet with a Windows 8.1 operation system. When I tried to switch it on it asked for the bitlocker key, after typing that I clicked on continue and it showed it's unlocked but afterwards
it got frozen, didn't react to anything. I could only switch it off with pressing the power button for a long time. When I switched it on again it started from the beginning, asking for the code again.

What could be the solution for starting the system?

I would really appreciate any help!


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Hi , Can someone please explain how to use this program ? I try it once on my drive and it created another smaill drive . why ? Even though now I reformated my computer back to original way it was before this . I am now curious as to what this program does and how to use it ?

Thank you

A:BitLocker ?

That will explain better than i could do
BitLocker Drive Encryption - Wikipedia, the free encyclopedia

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What type of key Usage should be written in Certificate (x.509) which stored in Smart Card for using it with Bitlocker To Go?

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I want to ask that, if I used Bitlocker on the PC, then after months, I want to sell the PC. But I've saved some personal information on that PC. So, I want to use DBAN to wipe the HDD. Will the Bitlocker stop me for doing so?

Million Thanks


Hi h24,

Bitlocker cant stop you from wiping the hdd with DBAN or any other format utility.


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Having SSD with bitlocker activate by it self and we don't have any recovery KEY. how to bypass this, need to get urgent data from the SSD

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I have a Transcend external hard disk. I activated bitlocker on my HDD about 1 year ago, but bitlocker prevent me to use my external disk. I try to use recovery software like M3 Bitlocker Decryptor; it shows my data, but I can't save them.
if it is possible, give me your recommends, please.
[email protected] is my email.
thanks a lot.

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I have a HP Omni Tablet 10" windows 8 that is locked with BitLocker wanting a key.  I have do not have a key for it and even if I did the screen will not bring up the keyboard to enter it.  The Continue button will not work.  It appears
to completely locked up.  I have tried the reset procedure and that jut brings me back to the BitLocker screen.  What do I do netxt?


As you have found out bitlocker can make your computer inaccessible.  The only way you can access the computer is if you get a win 7 dvd from HP and format and install it all over again.  If you do not have a key you cannot access it/Wanikiya and Dyami--Team Zigzag

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Does bit locker keep a log or information that identifies why it was triggered?  If so how do I find that information? 

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HP Elitebook 840 G3.Trying to Bilocker the laptop with the key on a USB memory stick. When selecting the check option it fails.De-selecting the check option and the laptop encrypts, the key file is written to the memory stick and the AD record is updated with the details of the encryption and a recovery key.When the laptop is re-booted it doesn't see the USB memory stick with encryption file. The only way in is to enter the 48 digit recovery key.I have tried several different memory sticks without success.I have tried both USB slots without success.I have upgraded to the latest BIOS without succes.I have upgarded Firmware and Chipset drivers with out success. Please help.

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Dear Microsoft Team,
Kindly help to us for recover the bitlocker key, so we can open the hdd.

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i have locked folder with bitloker..i have deleted the recovery key..i have passward but it showes that this passward is incorrect and showes error code 0x8007007a..i have reinstalled the window 8 but still the folder has locked..how can i unlocked the folder..


You have your post marked solved as soon as you posted it. Did you solve your issue?

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Hi all,

Apologies if this has been answered elsewhere, but can someone please advise on why a user would only be getting one bit locker attempt on Win 8 and not three?

On Win 7, you could perform a TPM Chip reset, but as far as I'm aware, you cannot on Win 8.

Any help would be appreciated. Thank you.

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I was switching to 64 Bit from 32 Bit and had a western Digital 1-TB hardrive, as a back up and was Bitlocker Encryption to . Saved all my files to this drive and turn of Bitlocker. When I set up Windows 7 Ultimate 64 Bit and added my back up drive it ask me to unlock well I would only the file with the key is on my back up drive which is Bitlock . Do you think its because its now 64 Bit and if I was to change back to 32 Bit do you think I could get back into this lock drive even with no key. Or if I was to to a quick format say 1 to 2 mins could I then get into the files on this drive.

A:Help with Bitlocker

Quote: Originally Posted by Windowsjunky

I was switching to 64 Bit from 32 Bit and had a western Digital 1-TB hardrive, as a back up and was Bitlocker Encryption to . Saved all my files to this drive and turn of Bitlocker. When I set up Windows 7 Ultimate 64 Bit and added my back up drive it ask me to unlock well I would only the file with the key is on my back up drive which is Bitlock . Do you think its because its now 64 Bit and if I was to change back to 32 Bit do you think I could get back into this lock drive even with no key

Welcome to the forums Windowsjunky!

Should make no difference of which bit version! I have bitlocker on my 32 bit Win7, my 64 bit, and the devices work in either machine.

Or wait you dont have a password, you have a stored key? If you have the key on the drive thats encrypted that could be messy...

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This may sound Odd or maybe I have a memory block, But what is Bit Locker ? Did it com with win.10 And what is it's function I was thinking of Bit Defender Antivirus.But I know thats not it .



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I'm in the process of fixing crap that Acronis TrueImage broke while uninstalling. Apparently their developers forgot to make their application revert changes after the uninstall finishes.

Anyway, I'm having a weird issue. Took 2-3 hours last night to get Backup & Restore working being that Acronis broke that as well. Now that I have it working, I'm having another issue. I can't click on "Turn on" BitLocker. Trust me, my desktop is more than able to handle BitLocker. I've seen the option to turn it on awhile ago and now I don't. I'm confused.

Please, if anyone can help me. I'm sick of this software's damages. Almost causes for a complete wipe & reload.

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Hi. I use bitlocker on a 500 gb partiton in my hard drive. Windows 7 is also installed in the same drive. before it was all fine but since this morning i hvnt been able to start windows(it hangs at the welcome screen). I switched on the computer then I enter the numerical bitlocker password ....then it hangs at the welcome screen. I tried accessing the Bitlocker encrypted drive from other operating systems....the drive is shown as locked. when i tried to open it, it prompts for the password. when I enter the password the computer freezes. Plis help me out. I have important datas in that drive.

A:bitlocker help

Boot with your Windows DVD and do Startup Repair. Maybe that will work.

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I want to try using the Bitlocker to encyrpt my Hdd. When i try to activate it, the system says it cannot find the TPM. I did a bit of reading, and that the TPM is a chip that stores the unlock code to access the Hdd.

It also said i can use a USB Stick to hold the unlock code. I tried that, still wont let me go past the screen about not finding the TPM.

Any help would be great.


I want to try using the Bitlocker to encyrpt my Hdd. When i try to activate it, the system says it cannot find the TPM. I did a bit of reading, and that the TPM is a chip that stores the unlock code to access the Hdd.It also said i can use a USB Stick to hold the unlock code. I tried that, still wont let me go past the screen about not finding the TPM.Any help would be great.http://windowshelp.microsoft.com/Windows/e...6bf2201033.mspx"BitLocker can also be used without a TPM. To use BitLocker on a computer without a TPM, you must change the default behavior of the BitLocker setup wizard by using Group Policy, or configure BitLocker by using a script. When BitLocker is used without a TPM, the required encryption keys are stored on a USB flash drive that must be presented to unlock the data stored on a volume."

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Hey everyone.
All of sudden I cant access the password screen of my external hard drive. Instead it only asks for the recovery key. I set this up long time ago and I have no way to find the key. Can someone here help me how to access the password screen again? Or any
professional tools to get the recovery key from the drive?

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Can someone PLEASE give me correct information on how to get rid of bitlocker so I can install TRUECRYPY?  TRUECRYPT keeps having windows pop up in it saying to use bitlocker.  Bitlocker IS installed on win 7 pro.  Articles have sent me to
the control pannel where I should access "Turn off bitlocker", "Security" in the control panel, the settings aren't there.  I've found Bitlocler in the search ba, but can't access any settings except to create a certificate. 
How do I get rid of this program.
[email protected]  (I called microsoft tech support, they transferred me to someone that told me to create an account.  Then told me if I don't subscribe=be to this extra service there's a $400.00 fee for one tine help)!

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I accidentally put BitLocker on my C drive. It completely filled my C drive. Can it be removed to return my C drive back to the previous state?

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windows10 asking bitlocker key

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We very large office with 300 users, recently
received 20e3 Lenovo Tablet running WIN  8.1, we want to work with Bit Locker (Microsoft's encryption system) with the TPM, we have some urgent questions.

working with a TPM + Pin code, if you're wrong 33 times in the pin code of the TPM is locked and I have to do recovery with key password long, errors are cumulative, which is problematic for us , because most of the users on the ground and we can not give
them a password recovery , password recovery not transferable for users.

1. Do you know of locking the TPM 33 times, and whether it can be released or otherwise reset it without
user intervention. (Is it related to the manufacturer?)

2. The second solution came in organizing this work only in a pin code, the question is how it is secure, and where the keys are kept?
(We can not work with a USB flash disk) Thank you very much. Hezi.

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Hello, i have just finished building a TaskSequence in SCCM 2012 for de HP Elite X2 1012 G1 notebook.All is working except Bitlocker.All other laptops (HP 650 G1, G2 and Elite X2 1011 G1, etc) bitlocker does work.I receive an error with Active Directory not being setup correcty. Access Denied.This is normally due to de SELF object not able to write the TPM ownerinformation. But our AD has been setup for this a long time ago. And all other laptops etc bitlocker works fine.When i check the bios. all other laptops have an option for OS managament of bitlocker.The new HP Elite X2 1012 G1 however does not.How can i enable bitlocker and write the key to the Active Directory for this laptop?


It looks like that setting can be found on page 20 of the manual under the Secourity -> TPM Embedded Security -> TPM State menu. Here's the link to the manual with detailed settings for the BIOS: http://h10032.www1.hp.com/ctg/Manual/c04947557

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I see it's suggested to use 2 different USB flash drives when applying Bitlocker.  You need one for the startup key and one for the recovery key.  What size USB flash drive should be used for each key?

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