Users cannot restore files because the Previous Versions tab in the My Documents Properties dialog box is missing.
Cause: If storage allocation has been enabled for deleted files, and the location to which My Documents is redirected has recently been changed, then the regularly scheduled snapshot has not occurred.
Solution: No action is required. The Previous Versions tab will appear after the next regularly scheduled snapshot occurs. By default, snapshots are scheduled to occur at 7:00 A.M. and at noon.
If you have not run Client Setup on your client computer, you might need to manually install the Shadow Copy client. To manually install the Shadow Copy client, from the client computer click Start, click Run, and then type: