Recovering from a Problem
Ideally, solving a problem will require a specific tweak to the system: a registry setting change, a driver upgrade, a program uninstall. But sometimes you need to take more of a "big picture" approach that reverts your system to some previous state in the hope that you’ll leap past the problem and get your system working again. Windows XP offers four tools that enable you to try this approach: Last Known Good Configuration, System Restore, Recovery Console, and reinstalling Windows XP, which should be used in that order. The next four sections discuss these tools.
Booting Using the Last Known Good Configuration
Each time Windows XP starts successfully in normally mode, the system makes a note of which control set (the ...