Hi Cyborg. I'm Greg, 10 years awarded Windows MVP, here to help you.
This is due to the BIOS resetting the TPM which controls the PIN. It has the same fixes as here:
Try these fixes for PIN not available error in Windows 11:
https://www.technipages.com/windows-11-your-pin...
https://appuals.com/your-pin-is-no-longer-avail...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://10scopes.com/fix-your-pin-is-no-longer-...
https://www.youtube.com/watch?v=4Q7mhcYUaHQ
To reach the Winre Repair Mode or Bootable Media to try the above steps or others I will give you, Use whichever method works in this link to get into Repair Mode so you can do the necessary repairs or do a Reset:
https://www.elevenforum.com/t/boot-to-advanced-...
Easiest is to force shutdown by holding in the power button. Do this twice. The third time you power on it should start into Repair Mode. Once in the Repair Mode try the numbered steps below.
It may be necessary to create bootable media on another PC to access Advanced Startup Options to try repairs, a Reset or do the Clean install. The bootable media has it's own set of files so that repairs or Reset might work better, doesn't require a password, and you'll have it to if necessary do the vastly superior Clean Install.
To create Windows 11 Installation Media on another PC install Media Creation Tool and follow the directions here under Create Installation Media, expand the link for "Before you get Started:"
https://www.microsoft.com/en-US/software-downlo...
Insert media, boot it by powering up PC while pressing the BIOS Boot Menu Key given here:
https://www.sysnative.com/forums/hardware-tutor...
If the media won't boot you may need to enter BIOS/UEFI Setup (pressing key given in chart in link above) to turn off Fast Boot or Fast Startup first.
Choose the boot device as a UEFI device if offered, on second screen choose Repair Your Computer, then Advanced Troubleshoot Options, then:
1) Try a System Restore,
2) If that fails try Uninstall Updates as far back as necessary to see if this was caused by an Update,
3) Open the Command Prompt to:
a) run System File Checker following Option Two here:
https://www.elevenforum.com/t/use-system-file-c...
and DISM:
https://winaero.com/how-to-repair-windows-11-wi...
b) run a full Disk Check:
https://allthings.how/how-to-run-chkdsk-in-wind...
c) trigger Safe Mode with Networking (for internet) or Safe Mode following
https://helpdeskgeek.com/windows-11/how-to-star... to roll back Updates & Drivers in Windows Update History, update your drivers from the PC/Motherboard manufacturer's website and try the other numbered repairs.
You can also create a new Local Admin account to replace yours:
https://pureinfotech.com/create-local-administr...
d) From the Command Prompt enable the built-in hidden Admin account using Option 5 here:
https://www.elevenforum.com/t/enable-or-disable..., sign in leaving password blank, create a new Local Admin account to sign into, set up, move your files over, when ready delete the old account to convert the new one to MS Account:
https://pureinfotech.com/create-local-account-w.... Then hide the built-in Admin again.
4) If those fail then go back to Troubleshoot Options to do a Reset.
5) If that fails choose Install Now, then Custom Install, then at the drive selection screen delete all partitions down to Unallocated Space to get it cleanest, click Next to let it create needed partitions and start install - this makes it foolproof. Everything needed to Clean Install is here:
https://www.windowscentral.com/how-do-clean-ins...
https://www.microsoft.com/en-in/software-downlo...
6) If you have files that aren't backed up you can use the same bootable media to try to rescue your files using these methods:
http://answers.microsoft.com/en-us/windows/wiki...
I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.
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