WIn7 Computer Freeze

[Maplesap]

PC Specs:
Operating System
Windows 7 Home Premium 64-bit SP1
CPU
AMD FX-8350 33 °C
Vishera 32nm Technology
RAM
16.0GB Dual-Channel DDR3 @ 722MHz (9-9-9-24)
Motherboard
ASUSTeK COMPUTER INC. SABERTOOTH 990FX (AM3r2) 38 °C
Graphics
DELL E2311H (1920x1080@60Hz)
1023MB NVIDIA GeForce GTX 550 Ti (MSI) 42 °C
1023MB NVIDIA GeForce GTX 550 Ti (MSI) 35 °C
ForceWare version: 337.88
SLI Disabled
Storage
931GB Seagate ST1000DM 003-9YN162 SCSI Disk Device (SATA) 39 °C
Optical Drives
ATAPI iHAS424 B SCSI CdRom Device
DTSOFT Virtual CdRom Device
Audio
Realtek High Definition Audio

About 2 weeks ago my computer started acting up. It would freeze whenever I was playing full screen games (fallout, LoL), But recently its been freezing any time it wants. However it does seem to enjoy freezing the most when I'm away from it and its idle, but that may just be a coincidence.
After the freezes if I hit the restart button on my case the operating system fails to launch, so I have to completely turn it off and back on again to get it to work. The last thing I can remember that happens is sometimes after rebooting my desktop backround will be completely black, even after everything else is loaded and working.
I've, looked up the problem and i cant find anyone who has this exact same problem as me so I haven't been confident enough to try and fix this for fear of really screwing it up.

Any help you could provide would be appreciated.

 

[pazdindalal]

Try removing one of the Graphic cards and then starting the PC

 

[Maplesap]

Try removing one of the Graphic cards and then starting the PC

Ok, I tried this, and my computer went about 2 hours before freezing again, so I think it may be something else

I don't know if knowing this would help, but I just found out that if i'm watching a video or having in a skype call the audio functions completely normal for a few minutes after the screen freezes. Just some extra info

 

[pazdindalal]

check your RAM

 

[Maplesap]

Sorry for leaving this unsolved for so long, but I kinda forgot about it after I fixed the problem. I did ran memtest and when everything went fine I decided to look into it being malware. I probably should have started there, and it did end up being the problem. I got malwarebytes installed and after running a super thorough scan it did find some problems and promptly handled them.

Again sorry for being a bad customer, but this was my full solution so i hope someone can benefit from this down the road.