Safe Way to Repair Registry
Start the System Restore Utility
- Pull up the task manager by pressing "Control," "Alt" and "Delete" at the same time. Then go to the "File" menu and select "New Task (Run...)." A dialogue box will pop up. This dialogue box will allow you to run a utility directly instead of going through the Start menu or desktop, which could be corrupted by the Registry errors. Once the "Run" dialogue box appears, type "%SystemRoot%\System32\Restore\Rstrui.exe" (without the quotation marks) and then press "OK." A new window will pop up that reads, "Welcome to System Restore."
Pick a Restore Point
- Select "Restore My Computer to an Earlier Time" and then click the "Next" button.
A new screen will appear with a calendar on it. On selected days, you will see system checkpoints. These checkpoints represent times when your Registry settings were automatically backed up. Select the restore point that is closest to the current date, and then click "Next." The computer will automatically restart and your previous Registry settings will be restored.
- If the restore point did not repair the Registry, you will need to take some more aggressive measures. You can try the above method again, restoring to an earlier save point, but this may cause you to lose some data. The further back you go, the less of your data you can expect to be preserved. If you cannot restore to a point with an intact Registry, you will need to perform a "Repair" operation with your Windows Boot CD. Insert the CD into your computer's CD-ROM drive and, when the "Boot" menu appears, go to the "Setup" utility and select "Repair" from the "Operations" menu. Then follow the prompts to repair the Registry. If you are using a version of Windows that's older than XP, you will have to reinstall the operating system, as there is no "Repair" function in older versions of Windows.