I've seen one other message referencing a lost of a folder of MP3's. I
can't be sure it wasn't also from this poster, but it was a while ago, in
terms of time. The user quarantined a bunch of stuff, then found the
mechanism to retrieve from quarantine, but upon reboot, found the music
folder gone.
I think the thread name had "restore failure" or similar in the name.
This may be a similar issue, but I can't tell at this distance.
Mohammed--what would be helpful if it is at all possible would be a detailed
enough description of what was found on your machine (there is a cleaner.log
in the directory the program is installed in) and a description of what
disappeared--the name and content of the folder and what application it was
associated with--that Microsoft can replicate this issue, which I would
expect is quite distressing to you and anyone else seeing it.