Recently I encountered a deadly and very persistent virus. It disabled my operating system (Windows 10) almost completely, no matter what I did (including in safe mode and with no internet), while opening countless times Microsoft's support/help page in my internet browsers. I succeeded (barely..) to reinstall Windows (without formatting the drive), but Windows couldn't launch..
Then, after doing a low level format to both my main drive and my SSD drive, I tried to install Windows - both Windows 10 and Windows 7, but no matter what I did, Windows Setup stop responding (can't click or type anything) after a while.
Moreover, my Bios was also infected! When I opened it, the BIOS "help" window opened many times (similar to what happened in Windows) and I needed to close it again and again. So I downloaded an updated Bios in a different PC and used a flash drive to update the Bios (which solved this specific problem).
After that I also tried to remove the virus by doing a factory reset to my BIOS (I short the CMOS jumper and as well as removed the battery and returned it after a minute).
All that still didn't work... The virus is still there making Windows (10 and 7) setup non responsive.
I also ran Kaspersky Rescue Disk. No threats were detected. Before the scan it could only find "clock skew" (since I did factory reset to my BIOS). After the scan was completed the Kaspersky's interface stop responding, exactly as in any other interfaces (Windows 7/10 setup and Windows itself before I did the format). What happens is that after a while I can move the mouse but not click on anything, and most of the times the keyboard also stop doing anything as well. Meanwhile, the hard disk and the SSD drive are both disconnected, as well as the internet, so the problem is probably with the BIOS..
One last thing - I managed to backup some of my data before doing the format. Using a flash drive I transferred my data to my laptop. I fear it might got this infection as well. It hasn't shown the same symptoms yet, but sometimes it shows a strange error that it can't recognize a usb connection (while nothing is connected).
Clearly the virus did some heavy damage. I'll be happy if you can help me deal with this very unfortunate situation..
Gigabyte GA-H97M-D3H LGA 1150
Intel Core i5 4690 3.5 Ghz
G. Skill Ares 2X4 GB DDR3 1600 Mhz PC3-12800 Mhz
EVGA GTX750Ti Superclocked 2GB GDDR5
Western Digital Caviar Black 1TB
Corsair Force LS 120 GB SSD