Mother Board: Gigabyte 3.2GHZ
HDD: SATA 1 TB
OS: Windows 8.1
Problem: When the computer is powered on it boots normally. However, all function keys or cmd keys to get into BIOS (F2), BOOT Menu (F8), Set up menu (F12) are disabled.
Possible Cause: Ransomware, I know for a fact my son installed a .exe file that put ransomware on his computer due to the HDD being locked and inaccessible. Also, when logging into his user he is prompted with the ransom log on by GoTLINKS.
Attempted Fixes: I've tried removing the HDD cables and booting in hopes of getting forced into the boot menu. However, no drives are detected and I am prompted to insert the OS Disk and hitting ENTER. Upon doing so all KBoard keys are disabled and computer must be restarted. At this point the computer will boot from the OS Disk and allow for a install of windows or windows repair. Upon trying to reinstall the OS (after plugging the HDD back in) the OS Key states it is not retrievable, even though it is on the tower of his desktop. This happens after the key is inserted. (The key has been registered prior to this all happening). When going into windows repair from the disk I am given 3 options. System Refresh, System Reset, and Advanced Options.
System Refresh: Error: A Valid OS must be selected. Please select a valid OS and restart your system.
System Reset: Error: The disk drive is locked. Please unlock the disk drive in order to proceed.
Advanced Options: CMD prompt is available but will not allow access into C:/ only into default X:/. System Restore pulls up the same error as system refresh and so on.
Hitman Pro: Put it on a USB drive, but the BIOS loads and ignores any function command going straight to user log on. For example, the F8, Shift+F8, or even Ctrl+Alt+S commands are ignored completely and brings me back to square one.
Jumper Switching (Tried) and Battery Removal <- (Not an Option): Tried them both to no avail.
USB Bootable Flash Drive: Attempting this now, but I'm almost certain the same problems will occur.
CMD Prompt: Tried DEBUG to force the BIOS back to default but cannot obtain the specific drive. Tried DISM.... ScanHealth Online/Offline but same problem occurs with the specific drive.
At this point I am all out of ideas, which is why I have come here. I'm assuming Windows quickstart option is preventing the use of functions through the reboot of BIOS. However a shutdown or restart (from user logon) should put windows back into a long restart, but it doesn't.
End Note* If the HDD is plugged in during booting of the system then no user options or function commands work. I am just directed to the user log on. CMD Prompt is unavailable, and so are any options to restore/reset/ or refresh the system.