Reset windows 10 local admin password with bitlocker enabled

I tried to migrate a pc to a new domain upon reboot it says the trust relationship has failed. It cannot login to the old domain either. Stupidly I did not set the local admin password beforehand. There are various windows password reset tools that you boot from but I need one that works with bitlocker if possible? I have the bitlocker password just not the local admins.
parisvAsked:
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arnoldCommented:
Unless you setup and exported the bitlocker key to recover, you are in a bit of a pickle.

Resetting the password on the account will lock access to the files.

The simple process to regain acces to the system is boot the system using windows media, enter the repair mode, that gets you to a command ..

In c:\windows\system32
Rename utilman.exe utilman.bak
copy cmd.exe utilman.exe

Boot the system from the HD, hit ease access bottom, right at the login screen

Add a new local admin user
net user newusername *

net localgroup administrators /add newusername

Now at the login screen, alt-ctrl-del
.\newusername and password.
This should get you back on the system that you either rejoin the old domain, and get the data off, versus presuming that a direct transition as you attempted will preserve the data and transfer it ......

Once done, reverse the process ..
McKnifeCommented:
All reset processes require that you can mount the drive. The setup disk alone will be enough for this operation. Boot it, press shift f10, a command line appears. Mount the drive using
Manage-bde -unlock c: -pw password
Then, execute the steps that Arnold wrote down.

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Seth SimmonsSr. Systems AdministratorCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Split:
-- McKnife (https:#a42465568)
-- arnold (https:#a42465510)


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