how to check if pc is free of malware?

Soselia

Reputable
Jul 12, 2014
138
0
4,680
so i have used avast + malwarebytes combo with occasional security essentials and avg scans (no not using multiple antivir same time) today i found that some malware that opened command prompt after startup and send me to Gamezdoka.org ( and did some other things too maybe ? ) slipped through and afterwards avoided all scans including boot time scan. i removed it using regedit but now i'm not sure how many malwares do i have on pc that anti malwares don't see and don't show themselves as this one did?
i have some sensitive info on cloud and since i had reinstalled windows a month ago i though i was clean and accessed the data freely.
any way to check these files and my pc? which softwares to try? all suggestions appreciated.


p.s. my specs are pretty good so i don't think i'd notice slowdown even if infected so i can't diagnose with that either
 

Soselia

Reputable
Jul 12, 2014
138
0
4,680
i have windows 8.1 and it says "This program does not work on Windows 8.1 at this time! "
yah i have used hitman pro in the past but didnt remember the name. it is pretty throughout. thank you.