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MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

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Lesson 4: Using System Restore<br />

Lesson 4 Using System Restore<br />

18-25<br />

System Restore is a feature that monitors changes to certain system and application<br />

files. System Restore functions like an “undo” feature for Windows XP Professional<br />

configuration changes, allowing you to recover from problems caused by incorrect system<br />

settings, faulty drivers, and incompatible applications. Windows XP Professional<br />

creates restore points automatically, and you can also create a restore point manually.<br />

After this lesson, you will be able to<br />

■ Explain System Restore.<br />

■ Enable or disable System Restore.<br />

■ Create a restore point.<br />

■ Restore a restore point.<br />

Estimated lesson time: 30 minutes<br />

Overview of System Restore<br />

System Restore works by creating restore points that contain a snapshot of the Registry<br />

(which includes user account, application, and hardware configuration) and a<br />

copy of certain system files that Windows XP Professional requires for startup, including<br />

those in the %systemroot% directory and boot files on the system partition. You can<br />

restore your computer to a particular restore point at any time.<br />

By default, System Restore creates restore points when the following events occur:<br />

■ Every 24 hours if the computer is turned on or if it has been 24 hours since the<br />

computer was last turned on<br />

■ When you install an unsigned device driver<br />

■ When System Restore–compliant applications are installed<br />

■ When updates are installed through Automatic Updates or Windows Update<br />

■ When you restore data from backup media using Windows Backup<br />

■ When you restore a restore point<br />

■ When certain system or application files are changed<br />

■ When you create a restore point manually<br />

System Restore also monitors file operations for a core set of system and application<br />

files. These files are specified in %systemroot%\System32\Restore\Filelist.xml. System<br />

Restore records changes to these file and sometimes copies them to a hidden archive<br />

before allowing the files to be overwritten, deleted, or changed.

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