Windows Vista : Optimizing performance.

Shadow Copy helps you easily recover previous versions of iles and documents
that have been accidentally changed.
restore a previous version of a ile:
Shadow Copy•
1.
Right-click the ile you want to restore.
2.
Select Restore Previous Versions.
3.
Find the previous version based on the date.

Preview the ile to determine which one you want to restore.
4.
Restore the ile by dragging the ile to a folder, or select it and click
5.
Restore to restore it to its original version.