Yes, do a diskcheck (/dskchk), then defrag it, check for registry errors, get rid of the temp files, Only keep often used or essential icons on the desktop. Don't spend money unless you have to. Pick up Spybot (free) and AVG anti-virus, free also.You pick up key loggers and all kinds of crap where ever you go these days on the net and those two programs do a pretty good job protecting your machine.