There is an article at http://support.microsoft.com and MSDN as well about this. As I read it, I don't see anything broken here. Except "expectations." We have the same issue when people discover:
a. NTBACKUP doesn't such CDR/W or DVDR/W media.
b. XP doesn't understand DISKSPACE diskettes.
I have Windows XP, Scan-disk utility does not delete the downloaded program files (such as active X, game controls, etc.) Tried HP support, they say is adware or spyware, but have none on my machine. I used Norton anti-virus, Microsoft anti-spyware, and adaware. Really do not feel savvy enough to use hijack-this software app. Is this just a common problem with scan-disk application? Can I safely delete what I recognize and don't intend to use presently? Thank you.