Hi Regien and welcome to SF
Firstly can you please update to Windows 7 Service Pack 1 and ensure all windows updates are installed.
Your AVG Anti-virus should be uninstalled.
Please install Microsoft Security Essentials:
Recommended from a strict BSOD perspective, compatibility & stability compared to other antiviruses/internet security software.
It is free and lightweight:-
http://windows.microsoft.com/en-US/w...tials-download
Run
Chkdsk /f /r to detect and resolve any file system corruption:
Quote:
Click on the Start > Type in search cmd
Right click cmd at top and Run as Administrator
At the promt type Chkdsk /f /r (note the space between chkdsk and /f/r)
http://www.sevenforums.com/tutorials/433-disk-check.html
Also please perform a System File Check:
Quote:
Click on the Start > Type in search cmd
Right click cmd at top and Run as Administrator
Type SFC /scannow at the prompt
http://www.sevenforums.com/tutorials/139810-sfc-scannow-run-command-prompt-boot.html
Please post back any results.
Cheers
Dave