Computer freezing even with new hdd's and windows.

Solution
Hi there Altwolf,

Try running your system in safe mode. In case the problem is gone, there is a possibility that all of this is software related. In case it is not, it is most probably hardware.
In we assume that your RAM(most probable cause) is fine, you can do the following:
- Measure your system's temps.
- It could be PSU. Unfortunately, the easiest way to see whether this is the case is to just borrow one from somebody and try it on your system.
- Update your GPU drivers.

Cheers,
D_Know_WD
Hi there Altwolf,

Try running your system in safe mode. In case the problem is gone, there is a possibility that all of this is software related. In case it is not, it is most probably hardware.
In we assume that your RAM(most probable cause) is fine, you can do the following:
- Measure your system's temps.
- It could be PSU. Unfortunately, the easiest way to see whether this is the case is to just borrow one from somebody and try it on your system.
- Update your GPU drivers.

Cheers,
D_Know_WD
 
Solution
Ran memtest for hours with no problems, three clean freshly formatted installs of Windows on two seperate hard drives. And fresh drivers for the installs. Still happens, in safe mode I ran avg scans and didn't freeze but like I said it's random, 3 minutes-3 days.