21.7.1999
Reinstalling Windows every once in a while is a wise thing to do... if you're an experienced user. Before you decide to "redo" your system, make sure you've gathered all of your important data. You may choose to 'backup' on high-end removable media, but you should be safe enough by storing every irreplaceable file in one particular folder: My Documents. This way, you shouldn't have to worry about accidentally deleting an important file--as long as you don't remove the 'My Documents' folder from the root of your hard drive. I suggest keeping ALL of your saved data, documents, and multimedia in 'My Documents' subfolders--you'll always know where those files are.