Must restore computer every few days

[Li Blue Storm]

I just got a used asus g73jh from a friend, it wasnt working due to a few bad conections from the hdd & a few more things, so I went into it I kind of fixed everything got new thermal paste into it but, after a few days using it (it was fully working) I booted the pc but after a few seconds I logged into windows it froze, I rebooted a few times just to get the same result so I reinstalled windows and once again a few days latter it started freezing on boot, so again I reinstalled windows and disabled windows updates but it days latter it was the same thing, im reinstalling windows atm but im out of ideas of what could be causing it
btw I already run memtest and chkdsk

 

[Cycloid Torus]

Most likely reasons for corrupted files......RAM, HDD (and cable).........

Memtest86 - run OVERNIGHT - 7 or 8 passes (no single wimpy pass will do)

Download HDD manufacturer's utility and test HDD thoroughly - is SMART good?

 

[Colby D]

Laptop? What are the temps like? Was the board warped at all? A dying hard drive can pass a chkdsk without issue some times.. Which memtest.. booted from a cd/dvd or memtest executed inside of a windows environment?