Windows Update Error Code 80072f78

Causes for Error Code 80072f78

Common causes for this error include:

• • Communication failure with Microsoft update servers: This can happen due to issues with the Internet connection, or when the Windows update system cannot properly connect to the necessary servers.

• Proxy settings: Proxy servers configured on your computer or network can block the Windows Update service, causing error 80072f78.
• Antivirus interference: Some antivirus software can alter network settings, such as proxy settings, which can prevent successful Windows updates.
• Corrupted Windows Update Services: Sometimes, Windows Update services may fail to work due to corrupt or misconfigured files.

Solution 1: Run Windows Update Troubleshooter

To start fixing the problem, you can use the Windows Update Troubleshooter
. Here’s how to run it:

1. Go to Settings and click on Update & Security.
2. Click on Troubleshoot and then select Windows Update.
3. Click Run the troubleshooter and follow the instructions provided.

Solution 2: Disable Proxy Settings

This error can occur due to proxy settings that block the Windows Update service. Here’s how to disable the proxy:

1. Open Internet Explorer and click on Tools > Internet Options.
2. Go to the Connections tab and click on LAN Settings.
3. Ensure that Use a proxy server for your LAN is unchecked, and click OK.

Solution 3: Repair Windows Update Services

You may need to repair the Windows update services if they are corrupted. Here’s how to do it:

1. Open Command Prompt as Administrator.
2. Navigate to c:\windows\ and rename the SoftwareDistribution folder to old.
3. If you cannot rename the folder, stop the Windows Update service by running the command Net stop wuauserv.
4. Once the service is stopped, try renaming the folder again.
5. Restart the Windows Update service by running the command Net start wuauserv.
6. Finally, check for updates.

Solution 4: Perform an SFC Scan

Running the System File Checker (SFC) tool can help fix corrupted system files that may be causing the error. Here’s how to run an SFC scan:

1. Open Command Prompt as Administrator.
2. Type sfc /scannow and press Enter.
3. Wait for the scan to complete.

Note: If the scan reports that it found corrupt files but couldn’t fix some of them, additional steps might be needed.

Solution 5: Check for Antivirus Interference

Your antivirus software may be interfering with the Windows Update process. Disable or configure any proxy-related settings in your antivirus program, and try to install the updates again.

Solution 6: Perform a Clean Boot

A clean boot can help determine if third-party programs or services are causing issues. Here’s how to perform a clean boot:

1. Press Windows + R and type msconfig in the Run box and press Enter.
2. Go to the Services tab and check Hide all Microsoft services.
3. Click Disable all and go to the Startup tab.
4. Click Open Task Manager and disable all startup items.
5. Close Task Manager, click OK, and restart your computer.

Solution 7: Perform a System Restore

A system restore can help you revert your computer to a previous working state. Here’s how to do it:

1. Open the Start menu and type System Restore in the search bar.
2. Click on Create a restore point.
3. In the System Properties window, click on System Protection.
4. Click System Restore and follow the prompts to choose a restore point.

In Conclusion

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