Description of the System Restore Utility in Windows Millennium Edition:
http://support.microsoft.com?id=267951
http://support.microsoft.com?id=263455
22GB seems "a bit" large. To manually adjust the size of the Data Store, follow these steps:
1. In Control Panel, click System.
2. Click the Performance tab.
3. Click the File System button.
4. On the Hard Disk tab, adjust the System Restore disk space use slider to the preferred size.
IMPORTANT NOTE: Reducing the disk space used by System Restore may FIFO existing Restore Points, so use caution when performing this action.
So i was going through my computer and found a folder called _RESTORE and i clicked properties and it says that it takes up 22 gigs. I really needed more room on my comp so i tried deleting it. It comes up as Access denied. The source file may be in use. every time.
Why does it do this? Is the file needed? oh and the files inside the folder are: DISKCFG, SRDISKID, VxDMon.cfg, and VxDMon.cfg
thanks for the help

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic