How can I restore my computer back to factory settings?

You can reinstall the Operating System and all the applications but before doing anything so drastic try...

1) Click Start / Run and enter

msconfig

& click OK
select the Start Up Tab and uncheck all the ticked boxes (you may wish to check any boxes for security products)

2) Download Spybot Search & Destroy (free) & run it weekly

3) Download Piriform's CCleaner (free) and use the registry tool to fix issues with your machine's registry

4) Defragment the disk

Consider using Mozilla Firefox browser - many people do.

Then see how it goes....

Peccavi
September 2009