Where to start? Well, yesterday (17/02/16), when I turned my computer on, it gave me the Windows 7 build 7601 This copy of windows is not genuine message in the lower right corner of my screen and tried to get me to enter a key via popup. I have been using this PC with this OS since early 2014 (when I installed it), so this was rather suprising. This also came with a spiking CPU (could go from 0% to 45% while doing very little) or a CPU that would be under generaly high load for what it's doing. RAM usage also seemed rather high. I also got some BSODs (didn't note them down, but if I will if I get them again). It also seems to have set my default homepage in firefox to "chrome://ubufox/locale/ubufox.properties", but that could be down to it being synced with my Ubuntu laptop.
Edit: Got one of the BSODs: ***STOP:0x00000101 (0x0000000000000021,0x0000000000000000,0xFFFFF88003165180,0x0000000000000002)
What I've tried:
Chkdsk /r (did one pass, which took something like 8 hours and seems to have fixed a good chunk of the problem, must have scheduled a second as it said the volume was clean when i booted the second time, also seems to have improved system stability and performance somewhat).
Run various anti virals (Antimalware bytes [11 malware removed supposedly] at the advice of a friend, Kapersky's online scanner [3 Malware removed supposedly] and a scan with my own Webroot [nothing found, but it may have been the short scan]. Note: Only Webroot is installed now).
Installed the latest version of Java (after doing some google-fu).
Downloaded Window's own verification tool and ran it (came back negative).
Edited by Naranthor, 19 February 2016 - 07:16 AM.