[
-]
System checkpoints
System Restore creates restore points on a regular basis even if you have not made any changes to the system. System Restore automatically creates these restore points:
- every 24 hours of calendar time
or - every 24 hours your computer is turned on
If your computer is turned off for more than 24 hours, System Restore creates a restore point the next time you start the computer. The computer must be idle for a few minutes before System Restore creates a scheduled restore point.
Selecting a scheduled restore point restores Windows XP Professional and programs to the state that they were in at that time. Any files with data file name extensions (such as .doc, .htm, .xls, and so on) and all files in the My Documents folder are not restored.
[
-]
Program name installation restore points
When you install a program by using the latest installers such as InstallShield and Windows XP Professional Installer, System Restore creates a restore point. Use these restore points to track changes made to your system or to restore your computer to the state it was in before you installed the program.
Selecting this restore point removes installed files and registry settings, and restores programs and system files that were altered by the installation. Any files with data file name extensions (such as .doc, .htm, .xls, etc.) and all files in the My Documents folder are not restored.
To revert the changes made by a program that does not use one of the specified installers, select the most recent restore point before the program was installed.
[
-]
Windows XP Professional Auto Update restore points
If you use Windows XP Professional automatic update to receive downloaded updates automatically, System Restore creates a restore point before installing the updating software. If items are downloaded, but not installed, a restore point is not created. A restore point is created only when the new components start to install. Use these restore points to track changes you made to your system or when these updates might conflict with other products on your computer.