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Restoring Your System
If your system stops running correctly or becomes persistently unstablethanks to an incompatible program, faulty driver, or bad system setting, or for no apparent reasonuse System Restore to return your computer's configuration to its previous, working state without risk to personal documents, email, cookies, and Favorites. System Restore protects only Windows system files and settings; use Backup (described later in this chapter) to protect your personal data files and documents.System Restore runs invisibly in the background, monitoring and taking snapshots of critical system files and registry entries. These snapshots, called restore points, are created the first time that you boot XP and daily thereafter; every time that you install a program through Windows Installer or InstallShield; or whenever Windows Update or Automatic Updates runs. Before you make a major change to your system or its settings, you can create a restore point manually.To create a restore point manually:| 1. | Choose Start > All Programs > Accessories > System Tools > System Restore (Figure 19.11 ).Figure 19.11. Create a restore point before you install an iffy driver or program, or change the registry. |
| 2. | On the Welcome page, select Create a Restore Point; then click Next. |
| 3. | On the Create a Restore Point page, type a name for the restore point; then click Create (Figure 19.12 ).Figure 19.12. Give the restore point a meaningful name. |
| 4. | Click Close. |
Securing Your Computer" in Chapter 12).System Restore is turned on by default, using up to a hefty 12 percent of each hard drive to store copies of your system configuration. That's almost 5 GB of a 40 GB drive. You can allocate less space or turn off System Restore.To configure System Restore:
| 1. | Choose Start > Control Panel > Performance and Maintenance > System > System Restore tab (Figure 19.13 ).Figure 19.13. By default, System Restore monitors changes to every drive on your system and reserves 12 percent of each drive to archive restore points. |
| 2. | Adjust any of the following settings:To turn off System Restore, check Turn off System Restore on All Drives.To change the disk space allocated to restore points, click a drive in the Available Drives list; click Settings; drag the Disk Space to Use slider to change the allocation; then click OK (Figure 19.14 ).Figure 19.14. Drag the slider to the left to reclaim disk space from System Restore (but reduce the number of saved restore points). In general, don't set this value below 5 percent. |
| 3. | Click OK (or Apply). |
Managing Device Drivers" in Chapter 8.To restore your system:
| 1. | Choose Start > Help and Support. |
| 2. | In the Pick a Task section, click Undo Changes to Your Computer with System Restore. |
| 3. | On the Welcome page, select Restore My Computer to an Earlier Time; then click Next (refer to Figure 19.11). |
| 4. | On the Select a Restore Point page, on the calendar, click the boldface date on which your computer last worked properly. |
| 5. | Click one of the restore points listed to the right of the calendar; then click Next (Figure 19.15 ).Figure 19.15. System Restore stores several weeks of restore points, depending on how much space you've allocated to it. Boldface days indicate restore points. Click the < and > buttons to move through the months.[View full size image]  |
| 6. | Heed the warning to save your changes and close any open programs; then click Next.System Restore rewinds your system and restarts Windows automatically. |
| 7. | Click OK in the Restoration Complete window that appears after you log on (Figure 19.16 ).Figure 19.16. Success. Now check your system to see whether it's running correctly. |
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