■Turn Off Computer: When you turn off the computer and then turn it on again, you force the PC to copy the operating system into its memory and to clear some tracking information. This may eliminate some problems that can remain after performing a Restart. Refer to “Turning Off the PC” on page 41.
■Driver Rollback: This Microsoft Windows XP feature is part of the Windows Installer program used with the Add or Remove Programs utility in the Control Panel.
It can revert to the previous version of a driver program if an installation fails when you are installing a new version of the driver program. For more information, type Rollback into the Search box in Help and Support.
■System Restore: This Microsoft Windows XP feature creates a restore point where it records the PC settings at that time and date. You can later return the PC to the settings recorded at the restore point. You can create a specific restore point, or have the operating system create a restore point. For example, when you use Add Programs to add a software program, the operating system automatically creates a restore point before it adds the software. Use System Restore to return the PC to the settings the PC had before you installed the program. For more information, type System Restore into the Search box in Help and Support.