Windows 7 Working Slow keep freezes and crashed blue screen

I Totally scan and clean but recently i received one more blue screen

https://www.sevenforums.com/attachmen...1&d=1306300175 Here is the Windows_NT6_BSOD_jcgriff2.exe report please help .

The Problem is Solved I run memtest and click start after i click memtest directly find error and the problem is in my 2nd RAM So Yesterday I'l Remove That RAM to test and there is no Blue Screen now and my pc working fast because of Dual Core Processor and one problem is there some times it says explorer.exe stoped working and when i play any game highest in Vice City and San Andreas What i Can do to solve this but thanks all of them who helped me