After a Windows Update that turned into a BIOS update my computer is stuck on a black screen with system info and "Press esc to enter startup menu" esc did not work so I tried pressing f10,F1, Esc, and f2 while booting up, and in the right corner it said "setup,Diagnostics, Startup menu " ,etc, but no buttons I pressed worked. Next I decided to reset the CMOS by removing its battery, waiting, and putting it back in. I did this 2x. Nothing works, Please help.