There is two ways to do this, the first being the safest, the second being more accurate.
Right click on My Computer
and select Properties
then select the System Restore
tab. Under Disk Space Usage
move the slider to the left to reduce the amount of disk space SR uses. Clik Apply > Ok.
Reduce it a little each time & check the calender in System Restore, each time you reduce the size, until you reach your mark. Or:WARNING!! This is a Registry fix. If you are not comfortable messing with the Registry, do not try this.
Clik>>How to Backup The Registry in XP
Go to Start >Run
type in regedit
& find your way down to this key by cliking on the + sign to expand the folders.HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\
Highlight the System Restore
Key, right clik on the RPLife Interval
key & select Modify > Decimal Base
change the value to 2592000
which is 30 days. Clik Ok
& close out your registry.
Clik to enlarge:
Edited by hillbillygreek, 10 June 2007 - 12:26 AM.