Windows Update Failed to Install (Error 0x80240034) – How to Fix It
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Windows Update failed to install (Error 0x80240034) – How to Fix It

This instructive blog post has been created in order to explain what is the error 0x80240034 message that appears on some of the updates for Windows you are trying to install.

Recent problems concerning Windows Update have been brought to our attention. The problems happen when users try to update cumulative and security updates for their Windows versions. When this happens, users begin to see the following messages:

“Update has failed to download”
or
WU_E_DOWNLOAD_FAILED

How to Fix Error 0x80240034 Messages

Step #1: Reset Your PC and Then Update Again.

If you have problems with connecting to the update service, it could be because some components of your PC may not have started properly during Windows boot. Make sure to do a reset of your PC ad see if the issues will disappear.

Step #2: Delete files Belonging to Software Distribution and Catroot2

When your Windows version downloads updates, the updates are kept in a folder, called SoftwareDistribution.

To delete files in Software Distribution directory do the following substeps:

  • Open Command Prompt as an administrator.
  • Type the following commands:

→ net stop wuauserv (and hit “Enter”)
net stop bits (and hit “Enter”)

Then go to C:\Windows\SoftwareDistribution and delete every folder and file within this directory.

To reset Catroot2 do the following substeps:

  • Open Windows Command Prompt as an administrator.
  • Type the following commands:

→ Net stop cryptsvc (and hit Enter)
Md %systemroot%\system32\catroot2.old (and hit Enter)
Xcopy %systemroot%\system32\catroot2 %systemroot%\system32\catroot2.old /s (and hit Enter)

Then, navigate to the Catroot2 folder:

→ %windir%\System32\catroot2\

Delete all of the files in the Catroot2 folder and then open Windows Command Prompt as administrator again and type the following command:

→ net start cryptsvc (and hit Enter)

Step #3: Run Windows Update Troubleshooting Program

To run the troubleshooter, go to the following location:

→Settings – Updates and Security – Troubleshoot and then run it.

If you have Windows 7, you can download the troubleshooter by clicking on this link.

Step #4: Clean Up Temporary Files and System Files

Fortunately for you, Windows comes with something called Storage Sense. It can automatically clean the temporary files of Windows. To run Storage Sense, perform the following substeps:

  • Go to Settings-System-Storage.
  • On your right, click on the Storage tab and switch Storage Sense from Off to On.
  • Click on Change how we free up space.
  • Click on “Clean Now” after turning everything to “On”.

Step #5 Disable any Antivirus Programs During Update.

Sometimes, some antivirus programs take control over the network traffic and in some scenarios they detect some of the updates to be risky, which is not something that should alarm you, it just happens sometimes. This is why, you should try to disable the antivirus programs on your PC and then run an update to see if the problem is fixed.

Step #6 Run Windows File Checker

In order to repair damaged Windows files, you can use the system file checker so that you are able to repair any corrupt or damaged Windows files. Here is how you can do that:

  • Open Command Prompt as administrator.
  • Type the following command:

→ sfc /scannow (and hit Enter)

If the scanner detects any corruptions on your PC, it will replace them on system re-boot.

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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