This article was previously published under Q198864
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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
When you start your computer, the registry may not be backed up automatically.
This behavior can occur if either of the following conditions exists:
In the C:\Windows\Scanreg.ini file, the "Backup=" line is set to 0.
In the registry, the ScanRegistry value is missing from the Run key.
To resolve this behavior, use the appropriate method:
Modify the Scanreg.ini File
Modify the Scanreg.ini file to back up the registry automatically:
Click Start, point to Find, and then click "Files or Folders."
Type scanreg.ini in the Named box, and then click Find Now. Note that you should find one file located in the Windows folder.
Double-click Scanreg.ini. The file should open in Notepad.
Correct the "Backup=" line to "Backup=1" (without quotation marks).
On the File menu, click Save, and then quit Notepad.
For additional information about how to configure the Registry Checker tool, see the following article in the Microsoft Knowledge Base:
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To add ScanRegistry to the Run key in the registry, use Registry Editor to add a new string value named ScanRegistry with a data value of C:\Windows\Scanregw.exe /autorun under the following registry key: