Sunday I was running my standard weekly virus scan with F-Secure when it froze at 48%. Odd, so after being frozen at that for 30 minutes, I cancelled and ran it again, left the PC for several hours and came back, froze again at 48%. So I decided to cancel the scan a second time and went to MS Internet Security web page and downloaded their program to see if that would complete the scan. Turned off FS and began to install MS when the computer crashed.
On restart PC would not connect to internet. The internet connect worked, it said that it had internet connectivity, but nothing would connect. Check settings and everything was correct on TCP/IC v 6 and v4. but would not connect. At this point I figured I had a virus. Ran Malwarebytes and it found 14 items. I had it clean them, but still no connectivity.
Tried safe mode with network, no internet.
Downloaded (on a second computer) Kaspersky and created a rescue disk. Rebooted and tried to boot to DVD. PC bypassed the media and went straight to windows. Rebooted again and tried to enter CMOS to make boot to DVD first option, but the F2 hotkey would not access the BIOS.
Ran rkill. It stopped two processes, but did not restore internet access. It did however, allow me to enter BIOS when I rebooted again. Ran a full virus scan with Kas but it didn't find anything. (The Kaspersky graphical interface was able to browse the web however.)
So, do I have a virus? Did I have a virus that was removed, but damaged something in windows? Or is my computer demon possessed?
Anyone have any suggestions before I take the nuclear option tonight and format hard drives?