Has anyone run into this? My client had a “Windows XP 2000 Antivirus” spyware-type pop up on booting up. After I did a general clean up of temp files and the like, I ran antivirus, antispyware, and registry cleanings, I then rebooted the XP computer and just got, in either the protected or safe modes, his desktop background but without icons, taskbar, start menu, or anything else. I was going to “refresh” the Windows installation next, but the client had someone else come in who did some sort of a “clean up” and got it immediately working normally.