Bassline

Okay so I dunno if it's my grafics card but I'm new to this forum so didn't really know where to post please forgive me. Okay so my PC tends to freeze when I'm playing full screen programs and I have to turn it off and back on "Windows shut down from error" put doesn't say what it is when I boot up again. I tried to restore to factory settings but I can't find how to get to that option I have tried every function key (ESC F1 F2 ect). So I just installed windows 7 from fresh with my Disk and then installed my games and music ect (took over 14 hours) and then it happens again :\. I thought maybe I overclocked card too much but I set to default and still not fixed it, i didn't even clock it that much. Also ran virus tests for everything using 5 different programs, nothing. Tried so many things but still happens, please can anyone help. I have team viewer if someone wants to take a look at my PC. only way my games work is in Safe Mode, but that's just like super low ress. It seems ever since I activated the 4 cores it started to happen i think, but I looked the how to undue and there's no guides :( Specs of my PC: OS Name Microsoft Windows 7 Ultimate OS Manufacturer Microsoft Corporation System Manufacturer System manufacturer System Model System Product Name System Type x64-based PC Processor AMD Phenom II X4 B60 Processor, 3300 Mhz, 3 Core(s), 3 Logical Processor(s) BIOS Version/Date American Megatrends Inc. 0402, 30/07/2010 SMBIOS Version 2.5 Windows Directory C:\Windows System Directory C:\Windows\system32 Boot Device \Device\HarddiskVolume1 Locale United Kingdom Hardware Abstraction Layer Version = "6.1.7600.16385" Installed Physical Memory (RAM) 4.00 GB Total Physical Memory 4.00 GB Available Physical Memory 1.52 GB Display adapter type ATI Radeon HD 5770 1G Help will be well appreciated :)