I have changed nothing, the PC may have self rebooted from a Windows update, on boot it is reporting “map: no mapping found Press ESC in 1 seconds to skip startup.nsh or any other key to continue.” Pressing ESC or any key does nothing.
I was able to get the PC back into Windows by clicking random buttons until it got into the BIOS, then went into SAVE & EXIT to force it to boot from the Windows bootloader. Any ideas how to fix or prevent this?