Well, it's January, so it must be computer back-up and maintenance time.
I do this every January, and so should you! It doesn't take more than an hour for everything.
First, back up all your files and favorite pages to a DVD disk or flash drive. I have Firefox, so my favorite pages are called bookmarks. I save a list of the websites to a HTML document, and add that to the disk with all the pics and files I don't want to lose if my puter dies.
With that done, I turn off the puter, unplug it, and remove the cover...
There are usually 2-3 screws holding the cover on on the back.
Here's my puter all cleaned out.
Then on to Craig's....