Know How to Fix 0x80240034 – Windows 10 Update Failed Error

When downloading and installing Windows 10 Updates, it may fail with error code 0x80240034. In this article, I will discuss all the possible ways to fix this error code from your machine. Your PC may throw the following error message.

Feature Update to Windows 10, version 1803, failed to download (or “failed to install”), with error code: 0x80240034.

There are so many reasons that can cause the above update error. Some of the most suspicious reasons are corrupted system files, outdated softwares and drivers, corrupted registry file, misconfigured system settings etc. Here, I am listing out some of the most important solutions that may surely help you in order to fix this problem.

How to Fix Windows Update Error 0x80240034

Method 1: Fix using Advanced System Repair Tool

The most of the common reason behind windows update failed is corrupted or damaged system files like DLL files, EXE files, sys files etc. There are thousands of tiny system files are there that work specific task. If one of the files gets replaced, deleted or damaged then you may get windows update error 0x80240034.

Windows is made with huge number of dll files, exe files, sys files, various types of services, databases, etc so, it is not possible to keep monitoring all the files always. A brilliant PC Optimizer tool repairs damages, fix errors, update windows and drivers, and eliminate various types of errors silently.

Outbyte PC Repair Tool does all the above task easily and provides you an errorfree and smooth Windows environment to work so that you can focus on your business only.

3 Steps to Fix this Error
Step 1. Download Outbyte PC Repair Tool [File Size: 16.4 MB]
Step 2. SCAN your Windows PC
Step 3. Click Fix button to Repair Error

Download and Install Advanced System Repair Tool and scan your PC. It has the large database with 25 million of files. It will find all the damaged or deleted system files and reinstall them with the fresh one. After, optimizing with Advanced System Repair Tool, try to install windows update again.

Method 2: Run Troubleshooter

This is the most welcomed and first-aid method; if you encounter any update error in Windows 10/8/7 or other version of Windows OS. You can run Windows Update Troubleshooter as follows:

1. Click on Start Menu and search for Troubleshoot. Click on Troubleshooting.
2. Under System and Security, click on Fix Problems with Windows Update
3. It will launch troubleshooting wizard. Follow the instruction and start troubleshooting process. After finishing this process, when you again update Windows 10, you will notice that the update error 0x80240034 has gone.

Method 3: Turn Off Developer Mode

Developer Mode allows PC to download and install files only from the trusted source. It restricts various downloads and filters files using high parameter. So, turning off this feature may fix your problem easily.

Step 1: Go to Settings > Update & Security > and select For Developers option in the left pane.
Step 2: Select Don’t use Developer Features radio button or choose Sideload apps.


Step 3: Save and Close the settings and then try again to download and install windows update.

Method 4: Reset Windows Update

Resetting Windows Update is most suitable and final fix for this error as well as any update error. Here, is the detailed guide on how to Reset Windows Update.

Automatic Reset:

WUReset – Automatic Reset Windows Updates Components

Manually Reset:

Manually Reset Windows Update Components

Method 5: Run System File Checker Tool

System File Checker tool is a command line tool that scans system files for errors and fix if any problem found. It restores corrupted system files and fix windows operating system problems. You can use System File Checker tool as follows:

Step 1: Open Command Prompt as Administrator


Step 2: Now, type the following command in Command Prompt and press Enter.

sfc /scannow
sfc scannow

Step 3: Let the process finish. Close the Command Prompt and try to install Windows update again.


In this article, I have tried to explain how can you fix Windows Update Error 0x80240034 yourself. There are some useful methods are described in this article, that will help you to resolve windows 10 update problem.