Locked out of my Windows 10 system -TriBoot

MannyLNJ said:

I have a HP Probook with 3 OS's

1- Linux Mint
2- Windows 10 Pro
3- Windows 11 Education

I can boot into Mint or 11 no problems but something has corrupted my 10

When I get to the sign in screen I am presented with my user name and picture and asked for my PIN

When I enter it I get the message Your device is offline. Try a different sign-in method.

I can then hit OK and click on more options and choose the Windows Hello feature for my face

When I do that I see my camera light turn on but Windows 10 says Couldn't turn on the camera and goes back to asking for my PIN.I do not have a password setup only the PIN and there are no alternate accounts

Clean install of Win 10?

I do not have a password setup

When you installed Win 10 you will most likely have created a password.

Using a PIN does not make your password redundant. Indeed, there are cases where Windows ALWAYS prompts for that password. Sadly a number of users lose track of that password.

there are no alternate accounts

You might try enabling the built-in administrator account - tutorial available in the searchable Tutorials section.

Do you have
- any restore points available? It's normally possible to run System Restore by booting your PC from a Win 10 install disk. I have no idea how a multiple boot scenario affects that.
Tutorial available.

- a 3rd party disk image you can restore.
The routine and regular use of disk imaging is endlessly recommended here. This can help you recover from unrecoverable unbootable cases by restoring your O/S to a previous good state; this also protects you from e.g. disk failure, ransomware.

Thank you very much for your reply.




AGAIN
- do you have any System Restore points?

If so using one (offline via a Win 10 boot disk) should be your first thought.

Considering:

Your device is offline. Try a different sign-in method.

See:
How to Fix the “Your Device Is Offline Try a Different Sign-In Method” Error in Windows


Password reset: see
Reset Password of User Account in Windows 10

Thank you.

Thank you for your reply.