Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Getting to command prompt to disable bitlocker when comp won't boot

14 Feb 2013   #1

Getting to command prompt to disable bitlocker when comp won't boot

When I try start my computer I get this blue screen:

STOP: c000021a {Fatal System Error}
The intial session process or system process terminated unexpectedly with a sta
tus of 0x00000000 (0xc0000001 0x00100a20).
The system has been shut down.

It will not boot in safe mode or safe mode with command prompt. It has BitLocker ecryption which I have the 48 number password that I have to enter every time I boot.

I would like to learn how to get to the command prompt somehow to disable BitLocker and try to fix a registry file I damaged while trying to fix a virus.

At the very least, I would like to try to backup my data onto a 1TB WD My Passport.

Any help with this would be GREATLY appreciated. I am not extremely computer saavy.

My System SpecsSystem Spec
14 Feb 2013   #2


I've got the Windows Recovery Essentials disc running from NeoSmart. I can't access the hard drive to fix the registry files because of BitLocker. Anybody know EasyRE Command Line? How can I disable BitLocker through this command line? I have the BitLocker password.
My System SpecsSystem Spec
14 Feb 2013   #3

64-bit Windows 10 Pro

Hello lcallies, and welcome to Seven Forums.

Do you have the BitLocker recovery key?

If not, then you're pretty much out of luck. Formatting the HDD will allow you to use the HDD again, but of course you will lose everything on it.

If so, then using the tutorial below can help to unlock the BitLocker drive.

BitLocker Drive Encryption - Unlock a Locked OS Drive
My System SpecsSystem Spec

15 Feb 2013   #4


I do have the recovery key. I'll try unlocking with this tutorial...thanks!
My System SpecsSystem Spec
15 Feb 2013   #5

64-bit Windows 10 Pro

You're welcome. I hope it works for you.
My System SpecsSystem Spec

 Getting to command prompt to disable bitlocker when comp won't boot

Thread Tools

Similar help and support threads
Thread Forum
SFC /SCANNOW : Run in Command Prompt at Boot
How to Check / Repair the Windows System Files from a Command Prompt at Boot This shows how to start the PC and open a command prompt at boot so the Windows system files can be checked and repaired if possible, if the PC will not start to Windows normally or in safe mode. For those that...
Instant BSOD: Can not boot from HDD: Command Prompt not Helping
Hey everyone, This is my first post here, but I have found a wealth of info over the past few days from here. Than you for that. However, my problem doesn't end where others say "SOLVED". The jist of it: My computer is stuck in a loop. Start windows normally, safe start, neither works. ...
BSOD Help and Support
How would I run system restore from command prompt? Can not boot...
Backup and Restore
How do I make a DOS / command prompt boot CD?!?
I've looked everywhere on the web, and everything seems to apply to Windows 98 or earlier, and people with floppy disks! I need a simple CD or USB drive (CD preferably as USB booting I can never get to work) so I can flash a BIOS. The computer has no flash function in BIOS setup, and no windows...
General Discussion
Command Prompt won't Disable Administrator Account
Hello all, this is my first post in the 7forums and I'm ashamed of myself that it has to be one asking for help - mind you all, I'm tech savvy so I know what I'm talking about unless I otherwise note it, but here it goes: In the past, I have had to use the built-in Administrator account to...
General Discussion
Boot into safemode from the command Prompt? Possible?
I cant get windows to boot and it wont restore to another point with a repair disk, but when I put the repair disk in, it gives me an option to open a command prompt window. Is there a command to make the computer boot in safemode i can enter from the cmd prompt?
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 17:18.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App