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Installed new BIOS and reset whole TPM. now I’m screwed and can’t log into windows at all

Anonymous
2024-03-11T06:58:52+00:00

Installed new bios and reset the whole TPM module. Now every time i try to log in it says your pin is no longer available due to changes in security settings click here. When i click it does nothing. This is the only account. No start menu. I’m locked out so none of that. Help please

Windows for home | Windows 11 | Accounts, profiles, and login

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  1. Anonymous
    2024-03-11T08:45:15+00:00

    Hi,

    Sorry to hear you're experiencing this issue.

    Renaming the NGC folder using the command prompt should remove all PIN settings and fix the problem.

    1-Restart your computer while holding the SHIFT button

    2-The Advanced Startup menu will open on the boot.

    3-Go to Troubleshoot.

    4-Now, go to Advanced Options >Command prompt

    5-Run this command to take ownership of the folder:

    icacls C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\Ngc /T /Q /C /RESET

    6-Run this command to rename the folder:

    Ren C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\Ngc Ngc.old

    7-When finished close the command prompt then click to return to the first screen

    8-Click to continue to normal boot

    9-Then you should be able to sign in on Windows using your password

    I hope this information helps. If you have any questions or the problem persists, please let me know and I'll be glad to assist you further.

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  2. Anonymous
    2024-03-11T08:09:10+00:00

    Installed new bios and reset the whole TPM module. Now every time i try to log in it says your pin is no longer available due to changes in security settings ...

    Your TPM contains half of the Bitlocker encryption key. The other half is in the EFI System Partition. This is a security feature.

    I don't understand why you reset your TPM, or why you would do that without first disabling Bitlocker. Be that as it may, the result is that you locked yourself out of your computer, because you can no longer decrypt your hard drive. (The half of your Bitlocker password that was previously stored in your TPM is gone, since you reset the TPM.)

    There is only one possible recovery from this, and it relies on your Bitlocker recovery key. Did you make a backup copy of your Bitlocker recovery key? Otherwise, can you retrieve your Bitlocker recovery key from your Microsoft account?

    From Microsoft: Finding your BitLocker recovery key in Windows

    If you can make a copy of your Bitlocker recovery key, you can use it to decrypt your computer. Otherwise, I am truly sorry to say, neither you nor Microsoft can decrypt your hard drive.

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