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"0x81000038" error message when you back up files in Windows 7

When you back up your files by using Windows Backup in Windows 7, the backup fails and you receive the following error message:
This problem occurs because the following registry key value is missing:
HKEY_USERS\<User ID>\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
Therefore, this problem can occur if any of the computer’s users has a missing AppData path. This problem is not confined to the current logged on user.

Note The AppData folder is included in the backup if you have made one of the following selections in the configuration wizard:
  • You select the Let Windows choose (recommended) option in the backup wizard.
  • You select the Let me choose option in the backup wizard. You expand Data Files, and then you select the AppData folder item under Additional Locations for any of the user libraries on the computer.
To resolve this problem, do not include the AppData folder in the backup by using the Additional Location node. Instead, include the actual path of the AppData folder.

To do this, follow these steps:
  1. In Backup and Restore, click Change settings, select a backup destination, and then click Next.
  2. Select Let me choose, and then click Next.
  3. Expand Data Files, and then clear AppData folder under Additional Locations for each user account.
  4. Expand Computer, expand the system disk, expand Users, and then expand each users account to reselect AppData.
  5. Follow the instructions.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
windows back up backup and restore wizard

Article ID: 981907 - Last Review: 04/09/2012 14:11:00 - Revision: 3.0

Windows 7 Enterprise, Windows 7 Home Basic, Windows 7 Home Premium, Windows 7 Professional, Windows 7 Starter, Windows 7 Ultimate

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