Top 7 Ways to Fix Windows 11 Update Failed Error for x64-based Systems (KB5015814)

Windows 11 is a work in progress. Microsoft is steadily improving the latest Windows operation system with frequent updates. It’s in your best interest to install the latest build to protect your PC from vulnerabilities and enjoy new features. Some users have been having issues updating Windows 11 for x64-based systems. If you are among them, read along to fix the problem.

There are many factors at play here. We will start with basic troubleshooting tricks and move to advanced ones to fix Windows 11 installation errors on x64-based systems.

1. Ensure a Solid Wi-Fi Connection

Windows 11 updates come in large sizes. Some updates even go about 2GB-3GB in size. You must use a fast, steady Wi-Fi connection to download and install the update successfully. When you connect to a Wi-Fi network, opt for a 5GHz frequency and not a slower 2.4GHz for faster speeds. If you have an Ethernet connection at home or office, try using it over a Wi-Fi connection.

Step 1: Open Windows 11 Settings menu (use Windows + I keys).

Step 2: Select Network & internet from the left sidebar.

Step 3: Make sure it says connected status.

You can visit fast.com and make sure you have a double-digit internet speed (in Mbps).

2. Uninstall Third-Party Anti-Virus Programs

Sometimes third-party anti-virus applications like Malwarebytes or Norton may block the Windows 11 installation process. Here’s how you can uninstall such programs.

First, you must close anti-virus apps from the background. Press the up arrow in the bottom right corner of the taskbar. Right-click on an anti-virus app, and select quit.

Step 1: Launch Windows 11 Settings menu and select Apps from the left sidebar.

Step 2: Open Apps & features.

Step 3: Find the app from the list. Select the three-dot menu beside it.

Step 4: Select Uninstall and confirm your decision.

You can try installing Windows 11 update, and you shouldn’t face errors.

3. Run Windows Update Troubleshooter

Microsoft has packed a built-in troubleshooter to fix any issue related to Windows updates. Here’s how you can use it.

Step 1: Open Windows Settings and select System from the left sidebar.

Step 2: Select Troubleshoot and open Other troubleshooter.

Step 3: Run the Windows Update troubleshooter and let Microsoft tackle the issue.

4. Restart Windows Update Service

This trick did wonders for us when we faced Windows 11 installation issue. You need to restart Windows Update and Background Intelligent Transfer services and make them up and running on your PC. Here’s how.

Step 1: Press Windows + R keys and open the Run menu.

Step 2: Type services.msc and hit enter to open the Services app.

Step 3: Select Background Intelligent Transfer from the list and right-click on it.

Step 4: Select Restart from the context menu.

Step 5: Scroll down to Windows Update and right-click on it. Click Restart and close the Services app.

Head to the Windows Update menu in Settings and see if the Windows 11 download is starting or not.

5. Run Windows Security Scan

If you have a habit of downloading files and programs from unofficial sources, you might have infected your PC with malicious files. Such corrupt files may prevent your computer from downloading Windows 11 updates. You don’t need to use any third-party anti-virus app here. Microsoft has an excellent Windows Security tool built in to combat such problems.

Step 1: Press the Windows key and search for Windows Security.

Step 2: Hit Enter and open the app.

Step 3: Select Virus & threat protection from the left sidebar.

Step 4: Run quick scan on your PC.

You can minimize the app and continue with your work. Windows Security runs in the background and remove harmful files from your PC.

6. Disable .NET Framework

Many users in Windows forums suggested and tried this trick to fix the Windows update failed error on an x64-based system. Follow the steps below to disable .NET Framework.

Step 1: Press the Windows key and search for Control Panel.

Step 2: Hit Enter and open Control Panel.

Step 3: Select Programs.

Step 4: Select Turn Windows features on or off.

Step 5: Disable .NET Framework and click OK.

Navigate to Windows Settings > Windows Update and check if the download process has started or not.

7. Manually Download Update from Microsoft Update Catalog

If none of the tricks work, you can manually download the update from Microsoft Update Catalog and install it on your PC. The company recently made it easier and safer to download updates from the website.

Run the Latest Windows 11 Build

You no longer need to feel envious of Windows 11 users posting new features on social media platforms. You can go through the tricks above, fix installation issues, and access all new Windows 11 goodies.

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