0x80240440 Windows Update Error: How to Fix It

Explore the easiest methods to fix this error

by Srishti Sisodia
Srishti Sisodia
Srishti Sisodia
Srishti Sisodia is an electronics engineer and writer with a passion for technology. She has extensive experience exploring the latest technological advancements and sharing her insights through informative... read more
Reviewed by Alex Serban
Alex Serban
Alex Serban
Windows Server & Networking Expert
After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server... read more
Affiliate Disclosure
  • This update error could be caused due to corrupted system files, network issues, or faulty Windows Update service.
  • To fix this issue, you can delete WUServer and WIStatusServer registry entries or repair corrupted system files.
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Many of our readers complained about encountering the Windows Update error 0x80240440 when updating their Windows Server machines for security patches.

In this guide, we will explore the expert-recommended fixes to get rid of this error right after discussing the causes.

What causes the 0x80240440 Windows Update error?

There could be various reasons for this update error; some of the common ones are mentioned here:

  • Malware infection – If your computer is infected with a virus, it could corrupt your system files required for the update. You need to run a deep scan to remove the infection.
  • Windows Update service – The Windows Update service must be up and running for the update to be successful; if it is not working properly, you may see this error.
  • Windows Registry issues – If the registry entries are broken or missing, you might encounter a Windows update error. A registry cleaner would help a lot in this situation.
  • Network issues – To successfully install updates on your Windows server, you need an uninterrupted and stable network connection. The update may fail if you have a poor connection.

Now that you know the causes of the error, let us move on to the fixes to resolve the problem.

How can I fix the 0x80240440 Windows Update error?

1. Delete the cache from the Windows Update folder

1.1 Stop the Windows Update service

  1. Press Windows + R to open the Run window.Services Run command 0x80240440
  2. Type services.msc and click OK to open the Services app.
  3. Locate and right-click Windows Update and select Stop.Stop 0x80240440
  4. Wait for the service to stop and minimize the window.

1.2 Delete the DataStore folder

  1. Press Windows + R to open the Run window.DATASTORE PATH 0x80240440
  2. Type the following path and click OK: %windir%\SoftwareDistribution\DataStore
  3. File Explorer will open with the DataStore folder on the screen, press Ctrl + A to select all content and click the Delete button to remove all content.Delete DATA STORE CONTENT

1.3 Restart the Windows Update service

  1. Now go to Services again.
  2. Locate and right-click Windows Update and select Start.Start 0x80240440
  3. Wait for the process to start, then close the Services window.

2. Delete the WUServer and WIStatusServer entries

  1. Press Windows + R to open the Run window.Regedit 0x80240440
  2. Type regedit and click OK to open Registry Editor.
  3. Navigate to this path: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
  4. On the right pane, locate, and right-click WUServer & WIStatusServer, to clean the download path.Files delete 0x80240440
  5. Reboot your server to confirm the changes.

3. Run an SFC scan

  1. Press the Windows key, type cmd, and click Run as administrator.CMD elevated 0x80240440
  2. Copy and paste the following command to repair the system files and hit Enter: sfc/scannowSFCSCANNOW CMD
  3. Wait for the process to complete, then restart your server.

 4. Disable the Application Control in Sonicwall NSA

  1. Go to Firewall, then click App Control Advanced.
  2. On the App Control Advanced page, you can sort your search results.App control advanced 0x80240440
  3. For Category, choose a category from the drop-down menu; for Application, select an app and for Viewed by, select Signature.
  4. You can also type in the Lookup Signature ID if you know it.
  5. Click Configure icon (pencil-shaped) to edit the settings.
  6. You will get the App Control Signature Settings window; for the Block option, select Use App Settings (Disabled) and click OK.User settings disabled 0x80240440

Sonicwall NSA might cause network connectivity issues if the Application Control is enabled. You can check if any firewall settings are blocking the traffic, causing this Update error.

So, these are the methods you can follow to fix the 0x80240440 Windows Update error. If you have any questions or suggestions, feel free to mention them in the comments section below.

Still experiencing issues?


If the above suggestions have not solved your problem, your computer may experience more severe Windows troubles. We suggest choosing an all-in-one solution like Fortect to fix problems efficiently. After installation, just click the View&Fix button and then press Start Repair.

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