To restore the registry, use the Start Menu -> Registry Healer -> Backup -> Registry Restore shortcut or run the program and go to the Action top menu -> Restore Registry From Full Backup. The System Restore utility can be launched from the All Programs -> Accessories ->System Tools menu.
System Restore starts. On the Welcome to System Restore page, click "Restore my computer to an earlier time" (if it is not already selected), and then click Next.
On the Select a Restore Point page, pick a date on the calendar, select in the restore point list the most recent system checkpoint created with Registry Healer, and then click Next. A System Restore message may appear that lists configuration changes that System Restore will make. Click OK.
On the Confirm Restore Point Selection page, click Next. System Restore restores the previous Windows® XP configuration, and then restarts the computer.
Log on to the computer as Administrator. The System Restore Restoration Complete page appears.
For additional information about System Restore in Windows® XP, click Help and Support on the Start menu. In the Search box, type "system restore", and then press ENTER.
If Windows® XP fails to start .
Restart Windows® by using the "Last Known Good Configuration" feature: start the computer and then press the F8 key when Windows® begins. The Windows Advanced Options menu will appear.
Use ARROW keys to select the "Last Known Good Configuration" and press ENTER. Then select Microsoft Windows® XP and press ENTER. Windows® XP restores the computer to the most recent restore point.
If the above does not help you can run System Restore from the Safe Mode. Boot into safe mode, log on with an administrator account privileges and type into the command prompt:
%systemroot%\system32\restore\rstrui.exe. Then press enter.
Warning! Make sure that your backups are current. If you restore an old backup it could be fatal if you've made major changes to the operating system or hardware since the backups were created. For example, if you've installed Internet Explorer 6 and restore your registry from a backup predating that, expect that your computer won't boot properly.