Windows 10 KB5034843 Fails to Install? Look Here!

Windows 10 KB5034843 Fails to Install

An efficient and smooth operating system requires periodic updates to maintain optimal performance and security. Microsoft just released KB5034843 on February 29, 2024, for Windows 10 22H2 to boost your system performance.

According to Microsoft, this update affects games that you install on a second drive and the Windows Backup app will no longer appear on the user interface in regions where the app is not supported. However, you might find that KB5034843 fails to install occasionally. In this post, we will gather all the possible solutions for KB5034843 not installing.

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How to Download Windows 10 KB5034843 Manually?

When anything goes wrong in the update process of KB5034843, manually downloading and installing the update might do the trick. Follow these steps:

Step 1. Go to Windows Update Catalog and search for KB5034843 in the top right corner.

Step 2. Select the update that suits your system type and hit the Download button beside it.

How to Fix KB5034843 Installation Failure on Windows 10?

Fix 1: Check Windows Update Services

To make sure Windows Update to function properly, ensure related services are running. Follow these steps:

Step 1. Right-click on the Start menu and select Run.

Step 2. Type services.msc and hit Enter to launch Services.

Step 3. Locate Windows Update, Background Intelligent Transfer Service, Windows Installer Service, and Cryptographic Service.

Step 4. If they are running, right-click on it to choose Restart. If not, double-click on them one by one > select Automatic under the Startup type > hit Start > hit Apply & OK.

Fix 2: Run Windows Update Troubleshooter

Windows 10/11 is shopped with a couple of troubleshooters that are capable of patching up crucial security holes and reducing the risk of exploits. When Windows Update doesn’t work as expected, consider running the Windows Update troubleshooter:

Step 1. Press Win + I to open Windows Settings.

Step 2. Navigate to Update & Security > Troubleshoot > Additional troubleshooters.

Step 3. Click on Windows Update > hit Run the troubleshooter > apply the recommended solutions.

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Fix 3: Repair Corrupted System Files

Some of you might suspect the system files or Windows image files are damaged. Luckily, you can use System File Checker and Deployment Image Servicing and Management to repair these files. To do so:

Step 1. Type cmd in the search bar to locate Command Prompt.

Step 2. Run it as an administrator.

Step 3. In the command window, type sfc /scannow and hit Enter.

Step 4. After completion, run the following command in an administrative Command Prompt.

DISM /Online /Cleanup-Image /RestoreHealth

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Fix 4: Reset Windows Update Components

Another way to fix KB5034843 installation failure is to reset Windows Update components. By doing so, the update cache will be cleared and the related services will be restarted. Here’s how to do it:

Step 1. Launch Command Prompt with administrative rights.

Step 2. Run the following commands one by one and don’t forget to hit Enter to stop Windows-related services.

net stop wuauserv

net stop cryptSvc

net stop msiserver

net stop bits

Step 3. Run the commands below one after another to rename the SoftwareDistribution and Catroot2 folders:

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

ren C:\Windows\System32\catroot2 catroot2.old

Step 4. Run the following commands to start the services you’ve stopped in Step 2.

net start wuauserv

net start cryptSvc

net start msiserver

net start bits

Fix 5: Perform Disk Cleanup

Insufficient disk space is also a common cause for Windows update errors like KB5034843 fails to install. You can eliminate temporary files to spare more space for the update. To do so:

Step 1. Type disk cleanup in the search bar and hit Enter.

Step 2. Select the system drive as the target drive and hit OK.

Step 3. Tick the files you want to clean and click on OK to start the cleanup process.

Final Words

This post provides all you want when KB5034843 fails to install on your computer. These solutions mentioned are also useful when you run into other similar issues about Windows Update. Have a nice day!