My PC (Windows 8.1) is getting hangs randomly, NO BSOD, it just stays frozen and i have to do a hard reset, although i noticed that the hangs appears more frequently when using a web browser (any one, Firefox, Chrome or IE) and i have to do a serie of resets where each one the PC hangs after 1-5 minutes of windows login or it will hang after a long while (+4 hours usually).
So far i have checked for hard drive issues, CHKDSK found errors, and i scanned them in BOOT but it couldnt fix it. So i launched MHDD in a USB Bootable Stick and did a scan-remap on the drive, it found 35 bad blocks but they were remapped and fixed. Further scans with MHDD doesnt find more errors so i suppose that discards the HDD.
I have tried to check for malware but everytime i try to check for it, via Windows Defender or Malware Bytes it hangs in the process, maybe a bit after starting the main file checking or halfway there.
Also if i leave the PC idle downloading something, via browser, torrent or JDownloader2 it will hang usually after 30min-2hour of it, i notice it because the screen stays frozen also and i can check the time the pc hanged.
Im going to leave a report of my system specs via HWINFO.