|I would recommend saving all of your personal data to an external drive or by transferring to another computer and do a factory restore (destructive restore). This will return the computer to its factory shipped condition and wipe out all of the accumulated problems. You will have to reload all of your programs that were not shipped with the system including probably your antivirus program, but it will be like getting a new laptop. You will need to make sure you have any install disks and any key codes (look for the windows sticker on the laptop to find the windows activation key).|
If you decide to do this, remove all external drives, printers, etc., then you will need to access your recovery partition by repeatedly pressing F10 during start up and following the prompts.
Post back if this method is not to your liking and one of us will give you additional advice on tracking down the culprit(s).
You have to be a little bit crazy to keep you from going insane.
This site is about helping people, lets keep it that way.