Dear
My solution can help you to slove your problem, to make the system run faster and more stable,.
1.You should often clean up temporary files folder.
When you operate the System or browse the websites, some activity information stored in files (C:\Documents and Settings\username\).some virus may be hided in these temporary files. It removes temporary files left by your system making it cleaner and running faster.
2. To clean the valueless data in the registry
Click start —Run,type "regedot" to open Registry Editor. Select search— search goal (type virus name, a malicious program file name),delete the key in the search results. It is better make a backup before clean-up.
3.If you don’t know the specific location where files should be cleaned up in, and are worried to delete system files by mistake, which makes the system impossible to operate normally.I can supply you several optimization software. Maybe you don’t think the optimization software can help you out of distress. But they are your right arms. They can clean temporary files and the registry and your privacy,increases your PC speed.Well adapted to computer users at different competence levels.You can click the website http://computer-optimize.com/ to find the satisfied software
I wish my solution could help you.
Good luck