All my games freeze and crash to desktop plz help

Windows made corrections to the file system. Run the disk check again. You should search for wininit; chkdsk often does not work and wininit does.

i did another disk check, searched for wininit... it says it did not find any problems

Alright, good news, and nice work. Post back after you run SeaTools and whether the tests pass.

Sea Tools Results

Model: ST500DM002-1BD142
Serial Number: W2A3T2P3
Firmware Revision: KC44
Identify - Started 16/05/2012 21:07:12
Short DST - Started 16/05/2012 21:07:52
Short DST - Pass 16/05/2012 21:08:53
Short Generic - Started 16/05/2012 21:09:48
Short Generic - Pass 16/05/2012 21:11:13
Long Generic - Started 16/05/2012 21:11:51
Long Generic - Pass 16/05/2012 22:27:28
SMART - Pass 16/05/2012 22:44:13

Anything missing? I did not click on the Fix All or Advanced Tests not sure what it could do to my computer.

just thought i need to share some more information with you, i just looked and my bios it's out of date.. its about a year old now from may of last year.. i also have had some other problems with my computer like sometimes i can be watching something on youtube and the screen goes black and the sound will cut out then it will restart my pc, and then says windows has recovered from a serious error, other times my screen goes a grey or orange ish color for no reason at all.. i tested it with another monitor and it did the same so i know its not the monitor thats going bust, I'm pretty sure my video card is the issue.

Could be the video card. Check what BIOS updates are available as well. See if any indicate stability increase, display card support, or memory/CPU support... Actually, I can do this for you. There are a number of stability increase updates and memory compatibility improvements. I would recommend updating to Version 1003 for your BIOS. ASUS - Motherboards- ASUS M5A78L/USB3

   Warning

WARNING: Never interrupt a BIOS flash.

Okay. I have never flashed a bios before is there a step by step guide on how to do this??

ASUS - Motherboards- ASUS M5A78L/USB3 -> OS: Windows 7 64bit -> BIOS-Utilities -> Information on how to use the AMI FLASH DOS Utility.

cheers mate, i just downloaded that and when i Run the file BUPDATER.EXE it comes up with this error message...

The version of this file is not compatible with the version of windows your running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64b-it) version of the program, and then contact the software publisher.

Did you use the 64-bit version?