My Folders Disappeared

A friend of mine has Windows Vista on his laptop pre-installed. It was
running all fine.

One day whn he switched it on all his manually created programs from
his USER folder on the desktop were gone... ...

He can search for them ... ... n they exist in their place... ... all
system n system-created folders ( such as documents, videos, music etc.)
are visible but not the ones which he himself created (including folders
created by programs like MSN Messenger's MY RECEIVED FILES)

For the time being he has copy pasted those folders with other names
with the help of search.

Any help will be extremely appreciated.


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ADDXB