Shadow Copy allows keeps previous copies of files. It enabled you to rescue data in the event that you totally messed something up or removed data from a file that you want to get back. To use this feature, you must be using the Ultimate, Business, or Enterprise version of Windows Vista.

Access a previous version of a file by performing the following steps:

1. Find the file and right-click the filename and click Properties.

2. Click the Previous Versions tab.

3. Select the version of the file you wish to open.