RPLifeInterval Data type: uint32 Access type: Read-only The time interval for which restore points are preserved, in seconds. When a restore point becomes older than this specified interval, it is deleted. The default age limit is 90 days. https://learn.microsoft.com/en-us/windows/win32/sr/systemrestoreconfig HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore\RPLifeInterval is set to the Vista default of 4294967295 sec (49701 days or 136 years) per