Modify System Restore Time

The three registry keys, to make changes to XP's System Restore feature are here: HKEY_LOCAL_MACHINE \ Software \ Microsoft \ WindowsNT \ CurrentVersion \ SystemRestore

Here, you can set the maximum time that a restore point exists before it gets deleted. The setting is specified in seconds, and the default is 7776000, which translates to 90 days. If you want to extend the time for the restore points, do this:

1. In the right pane, double click or create the DWORD value RPLifeInterval
2. In the value data field, enter a number in seconds that you want restore points to remain on the system before being deleted (for example, to specify a time to live of 60 days, enter the value 5184000).Close the registry editor.

To find out more, see KB article 295659 at
http://www.wxpnews.com/NW6G7Q/090310-Microsoft-Support