Oops, somehow I missed How to Speed Up Your Computer – Part 6. So here it is:
Another way to speed up your computer is to run Checkdisk. The process is easy and fun to do (what I think is fun may seem strange to you). But, fun or not, at least this tunes up your computer and should be part of your regular computer maintenance.
Go to the Start button, then to Run. In the text box that appears, type “cmd “ (but without the quotation marks. This will bring up the dos prompt. Type this in: chkdsk c: /f /r /x
You have to type this in exactly. Hit enter. It will ask if you want to run this next time you start your computer. Type Y for yes. Restart your computer. Now go do something non-computer related. The process can take 30 minutes to a couple of hours.