Computer Help and Support

If it's been sitting at 100% for a long time, you could do a manual reboot. Hold the power button down for a few seconds until the computer turns off, wait about 15 seconds, then turn it back on. Hopefully, it will boot normally.

Once you're back in Windows, Windows 10 has a built-in troubleshooter for BSOD errors.

Here's more info:

https://support.microsoft.com/en-us/windows/resolving-blue-screen-errors-in-windows-60b01860-58f2-be66-7516-5c45a66ae3c6

They're often caused by device driver issues. If you recently updated a driver, try rolling back to the prior version through Device Manager.

Here's a tutorial:

https://www.lifewire.com/how-to-roll-back-a-driver-in-windows-2619217