We have a Dell Optiplex GX270 which they kids use. Its been fine for about a year but now is running so very very slow. The internet is the worse. the games RC tycoon and SIMs are slow but not bad. MSN seems OK. There is also iTunes on but confess i don't know what that does or how it works.
What has happened to make things so slow? There's no pop ups or anything to suggest a virus. I thought it might be something to do with eveything loading up at start upbut have no idea which to tick and untick in msconfig
any help appreciated