Remove System Restore Points Vista
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Type in Disk Clean up
When the computer brings up Disk clean options, if running as administrator, select "Files from all users on this computer"
After permissions,the Drive Selection will calculate what is available to clean from (Windows C)
Disk Interface will appear after calculation window closes.
Two Tabs are offered: Disk clean-up or more options
Choose "More Options" tab. This is where you will find the restore point option.
If you hit clean-up "System Restore and Shadow Copies" then hit OK. Warning: this will also initiate clean-up of disk clean-up components.