Restore Previous Version
Sometimes your work gets trashed. The file may become corrupt or
infected. Perhaps it was changed too many times by too many
people and no longer even resembles the original document you
started with.
Windows
Vista creates a Shadow copy of your work as part of the
System Restore Point. You can choose to open a Previous version
of your document.
Try This: Restore a Previous Version
Go to Start-> Document.
Select
a file.
Go to Organize -> Properties.
Go to Previous Versions.
What Do You See? If this file is part of
the System Restore Point, you should see Shadow copies for each
backup.
The Easy Way: Right click a file
and go to Restore previous versions.