You might has the virus called MSBlaster and its a little hard to remove goto microsoft.com and do a search for 'msblast' and they wiull give you a step by step walkthough of how to remove it. if that does not work, you might have a boot sector virus with you can use a WIN98 bootup disk, and run without cd-rom support and type: fdisk /mbr - which will remove your master boot record of any kind of startup issues. if you are still having the problem, (if you are running winxp, win2k) goto start > run and type 'regedit' and goto Local Machine > Software > microsoft > Windows> Run. and see if you see anyhting unusual that runs during startup.