My new windows 7 rig freezes during downloads, installs, updates

I will start by saying I built the machine myself and originally I thought it was a ram stick, found one that I took out and the freezing stopped but it was the coincidence. It will freeze sometimes within 5 minutes or 1 hour. It is seemingly random. It will freeze with the full 16gb of ram and when i take out the stick with 12gb as well, and I figure its not the ram anymore and thats why I turn to you. I think it may be a software bug or something thats not installed. I have tried to install all the drivers that are out and the freezing happens sometimes when i go to install a program, download a driver, download a torrent, it seems during processes it just stops, screen locks up and it needs to be re-booted. Cant alt-tab, cant alt+ctrl+del or anything. Is there a program I can run to check everything? or a log or screenshots of a file or anything that you guys could use to diagnose? I'll get you anything you need, its frustrating that such a beautiful machine is freezing Also another thing that makes me think that its software rather than hardware is the fact that when i try to install windows updates they fail with an error 800B0100 and I have tried resetting the updater and running Microsoft tools and troubleshooters, nothings working.

Specs:
Windows 7 Home Premium 64bit
AMD FX-8150 Zambbezi AM3+ 8 core processor
16GB Corsair Vengence DDR3 Ram @668 Mhz 9-9-9-24
Asus M5A99X Evo SB910/950
Nvidia GeForce GTX560 2GB
Sata3 Seagate 1TB HDD
Sata3 OCZ Agility3 SDD 112G

Work through these Troubleshooting Steps for Windows 7 starting with Malwarebytes scan, Clean Boot and SFC. Stress test your RAM for 5-6 passes or overnight.

Someone with expertise on RAM timing also needs to look at your settings there.