How to Fix Windows 10 Update Error Code 0x80240034?

The Error Code 0x80240034 is related to a Windows Update error, though, Microsoft already fixed this error, but still many users are encountering some errors. Generally, users encounter this error when they are attempting to install the Cumulative Update KB4048955. Thus, it’s not an exceptional update.

Source : How to Fix Windows 10 Update Error Code 0x80240034?

However, this update successfully gets installed by simply using the automatic Windows Update service, but the endpoints of the installation process during the systems restart automatically fails, and all changes are rolled back into it. Nevertheless, Windows Update issues are most common and occur in both OS end and Microsoft’s. Some users encounter various error code whenever their updates fail, but whenever they check their Windows Update history, they met with the error code 0x80240034.

Below we discussed stepwise guide which helps you in troubleshooting the Windows Update Error Code 0x80240034. The methods are explained below.

Steps to Fix Windows 10 Update Error Code 0x80240034

Before start following the process, we recommend you that use these steps in the given sequence to avoid trouble and unwanted error. Also, perform a full system scan by any Anti-malware tool, it will detect a malicious program which affects your system and throws an error message like this. Here how to fix it:

Method-1: Run Windows Update Troubleshooter

1. Click the Windows + I keys all together to launch the ‘Settings’ option.
2. Under the Settings section, choose ‘Update & Security’ option.
3. Click on the ‘Troubleshoot’ option.
4. After that, locate ‘Windows Update’ tab.
5. Once found, click on it and choose ‘Run Troubleshooter’ button.
6. Wait for few seconds as scanning process takes few minutes.
7. Once the scanning finished, it should automatically report all the identified glitches and their status and try to fix it.
8. Lastly, restart the computer system to save all the changes.

Method-2: Re-enable Microsoft .NET Framework 3.5

If any user is unable to install the Windows Update due to the error code 0x80240034, or if the method above doesn’t help you, we would suggest you install the Microsoft .NET Framework 3.5.

However, by default Windows 10 includes this framework; therefore it cannot be deleted or changed in any way. Additionally, this Microsoft .NET Framework 3.5 can be easily damaged or corrupted by malware infection during the time you did any major changes in the computer system. Here how to re-enable the Microsoft .NET Framework 3.5:

1. Click on the ‘Control Panel’ icon to launch it on the screen.
2. Under the Control Panel window, press the ‘Programs and Features’ option.
3. After that, click on the ‘Turn Windows Features on or off link’ located on the left side of the screen.
4. Confirm that you checkmark the Microsoft .NET Framework 3.5 option. In case, if it is already marked, uncheck the box and save all the changes.
5. Next, click to reopen the ‘Turn Windows features on or off’ window and again checkmark the .NET Framework 3.5 option.

Billy Mark is a self-professed security expert; he has been making the people aware of the security threats. His passion is to write about Cybersecurity, cryptography, malware, social engineering, internet and new media. He writes for Norton security products at office.com/setup.