Error: 0xC800021F with Windows Update

When searching for available updates on the Windows Update site, you receive the 0x80248011 or 0xC800021F
error.

Problem description
This error can occur due to an issue with the Internet cache or corruption in the Data store.

Applicable operating systems
  • Windows 2000
  • Windows XP
  • Windows Server 2003

    Resolutions
    1. Delete the datastore and allow it to rebuild itself. First stop the Automatic Update Service
    1. Click Start.
    2. Choose Run.
    3. In the Run box, type services.msc.
    4. Click OK.
    5. Right-click the Automatic Updates Service.
    6. Click Stop.
    After Stopping the Service please rename the folder c:\Windows\SoftwareDistribution
    1. Open Windows Explorer
    2. Navigate to the Windows folder
    3. Click on the + next to the Windows folder
    4. Navigate to SoftwareDistribution folder
    5. Right Click on the SoftwareDistribution folder
    6. Select rename from the Menu
    7. Rename the folder to SoftwareDistribution.old and click Enter
    Now restart the Automatic Update Service
    1. Click Start.
    2. Choose Run.
    3. In the Run box, type services.msc.
    4. Click OK.
    5. Right-click the Automatic Updates Service.
    6. Click Start.

    Starting the service will take a moment.

    Retry Windows Update again

    Did this resolve your problem? No, try resolution 2

    2. Clear the Internet Explorer cache
    1. Start Internet Explorer.
    2. On the Tools menu, click Internet Options.
    3. Click the General tab.
    4. In the Temporary Internet files section, click Delete Cookies.
    5. Click OK in the Delete Cookies box.
    6. In the Temporary Internet Files section, click Delete Files.
    7. Select the Delete all offline content check box in the Delete Files dialog box.
    8. Click OK.
    9. In the History section, click the Clear History button.
    10. Click Yes.
    Click OK.

    Did this resolve your problem? No, contact the vendor


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