The Windows System Restore feature is designed to help you recover after a software installation failure or configuration changed that prevents your computer from booting. By default, new restore points are created after a system change, or every 24 hours. Also by default, the system restore points can consume up to 12% of the space on your hard drive.

To temporarily recover the used disk space, you can delete the system restore points from the Disk Cleanup utility.

    * Open the Disk Cleanup utility (from the Start menu | All Programs | Accessories | System Tools | Disk Cleanup).
    * When the Disk Cleanup dialog box, select the 'More Options' tab.
    * Press the 'Clean Up...' button.
    * Press the Yes button to confirm the restore point deletion.
    * Press the OK button.