The 'system volume information' folder is where Windows XP stores the restore points for when you need to use system restore. As it also stores viruses which may have been acquired, and since no antivirus product is able to rid this folder of viruses, you should always delete ALL restore points which will also delete any viruses within them.
To delete all restore points:
1. Control Panel - change to 'Classic' view.
2. Click 'System' then click the 'System Restore' tab.
3. Tick the "Turn off system restore" check-box and click 'Apply'
4. Wait a few seconds then remove the tick, click "Apply" again.
Before clicking "OK" to close the box, take note of the slider. This shows how much of your disk space is reserved for restore points. This amount of space will always be unavailable for anything else, even when the data within it is much less, because Windows has reserved it solely for the purpose of storing restore data. If you want to lower the amount of space it uses for that, do it now by adjusting the slider. Doing so will release more space for programs and your own data. Then click 'OK'. Just bear in mind that less space for restore points means fewer restore points will be available to you when you need to use System Restore.
Edited by pip22, 24 March 2007 - 05:12 PM.