It's hard to tell, it depends on where the files were stored. I know the program files can be restored/deleted depending on the point of restore, but as far as stuff in the my documents I'm not so sure. Only way to know is to try it.
A better way to recover them is to use a file recovery program and see if it can find them since when stuff is deleted, it's only marked as being gone, the data is still there until something new overwrites it.
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