How To Fix Windows Update Error Codes On Windows 10 & 11 (Complete Guide)

Windows Update errors can slow your system, prevent critical security updates from installing, and leave your system vulnerable to threats.  

So, how to fix Windows Update errors?

Issues in operating systems can affect your data security. Thus, it’s important to resolve issues correctly.  

This guide provides an enterprise-level solution to resolve Windows Update errors while keeping your YMYL data secure and following best practices. 

Whether you’re facing a cryptic error such as 0x80070002, 0x800f081f, or 0x80240020, or stuck in an endless loop saying ‘Undoing changes made to your computer‘, this guide will help get your system back to optimal performance. 

Core Anatomy: Why Do Windows Updates Fail?

Understanding how the update mechanism works will help you identify why your update has failed.  

Windows updates don’t just download files; they rely on several components. 

If your update has failed halfway through, it’s usually due to one of the following reasons: 

• Corrupted Temporary Folder 

When downloading updates, Windows will temporarily place the files in a folder called SoftwareDistribution.  

If connectivity or power is unexpectedly lost, the files can become corrupted.  

When you attempt to install updates again, Windows will struggle to read the corrupted files. 

• Disabled Background Tasks 

Windows updates heavily rely on the Background Intelligent Transfer Service (BITS).  

If system optimization tools or 3rd-party applications have disabled these background tasks, your system won’t be able to download new updates. 

• Not Enough Space Available 

Updates need space to download, extract, and back up your previous system files. If your drive doesn’t have enough space, the update will automatically fail. 

• Interfering 3rd Party Applications 

Many aggressive Antivirus, Virtual Private Network (VPN), or system-cleaning tools will wrongly identify legitimate background processes as a threat and prevent the connection to Microsoft. 

How To Fix Windows Update Error: Definitive Pre-Update Operational Checklist 

Before making any changes, take a few basic precautions to keep your files safe and prevent outside interference from causing errors. 

• Create A System Restore Point 

A System Restore Point will act like a safety net. Open your Start Menu and search for ‘Create a restore point’.  

Select your primary drive and click Create. If anything goes wrong, you can easily revert your system to this point in time. 

• Ensure Connected To AC Power 

Never attempt large updates on your laptop while running only on battery power.  

If your laptop loses power mid-way through a configuration, it can cause serious issues with your system files. 

• Disconnect Non-Essential Hardware 

Unplug any printers, webcams, secondary hard drives, gaming controllers, and docking stations from your USB ports.  

Only keep your mouse, keyboard, and monitor attached. 

• Check Time & Region Settings 

If your time is incorrect, your security servers will refuse to allow your computer to update.  

Open Settings > Time & language > Date & time. Ensure the ‘Set time automatically’ and ‘Set time zone automatically’ options are switched on. Click the ‘Sync now’ button. 

• Free Space Requirements 

One of the most common reasons an update fails is not having enough storage space.  

Depending on the type of update you’re attempting, you’ll require a certain amount of free space. 

You may Also Love To Read: What Is Software huzoxhu4.f6q5-3d? Your Efficiency Buddy Is Here!

Storage Allocation And Capacity Thresholds 

One of the most common, hidden reasons for an update failure is simply not having enough storage space.  

Different updates require different amounts of hard drive space to complete successfully. 

Tip: During major feature updates, a folder will be created on your system drive called Windows.old.  

This will contain a full copy of your previous operating parameters. This acts as an automatic safety net.  

If you notice major issues after updating, you can quickly uninstall the update. 

How To Fix Windows Update Error: 6 Simple Methods 

Follow the steps below in order if you are wondering how to fix Windows Update error. They have been organized from the easiest to slightly more advanced solutions. 

Method 1: Execute Native Diagnostic Automation 

First, try Windows’ built-in automatic repair tool. The wizard checks your background services, looks for missing data, and balances your registry. 

Windows 11: 

Start > Settings > System > Troubleshoot > Other troubleshooters. Find Windows Update and click Run. 

Windows 10: 

Start > Settings > Update & Security > Troubleshoot > Additional troubleshooters. Click on Windows Update and click Run the troubleshooter. 

Important: After the tool has finished, never click the Shutdown button. Click the power icon and click Restart.  

Windows contains a feature called Fast Startup, which stores parts of your system during a normal shutdown. To fully clear old errors from memory, click Restart. 

Method 2: Manually Refresh the Software Distribution Cache  

If your update is stuck downloading at 0% or 100%, then your local cache is likely causing the problem.  

By clearing these files, your system will no longer recognize the damaged files and will request a fresh copy from Microsoft. 

1. First, open your Start menu, search for services.msc, and press Enter. 

2. Then scroll down the list until you see Windows Update. Then right-click on it and then select Stop. 

3. Then, open File Explorer and navigate to C:\Windows\SoftwareDistribution. 

4. Open the folder, highlight all files and folders, right-click, and select Delete. 

5. Finally, return to Services, right-click Windows Update, and select Start. 

Method 3: Deploy Automated File and Image Repairs  

If your system has lost essential background files due to an unexpected power cut or crash, your updates will fail to install.  

Windows has two tools that can automatically resolve this issue without affecting your personal applications: System File Checker & Deployment Image Servicing and Management. 

1. First, you need to open the Start Menu and search for Command Prompt. Then right-click the top result.  

2. Then you need to select Run as administrator. 

3. Type DISM.exe /Online /Cleanup-image /Restorehealth and press Enter. (This tool will use official online links to check your files. It may pause at 20% or 40%). 

4. Lastly, press Enter once the tool completes successfully, then type sfc /scannow. 

Wait for the bar to reach 100%. If it shows ‘Windows Resource Protection found corrupt files and successfully repaired them,’ restart your PC immediately 

Method 4: Correct Background Service Configurations  

If external optimization apps pause your background services or set them to manual, your updates will fail. 

• First, open Services again by typing services.msc in your Run window (Windows Key + R). 

• Second, find Windows Update & Background Intelligent Transfer Service (BITS). 

• After that, right-click each one and click Properties. 

• Finally, find the Startup type drop-down menu. Change the option from Manual/Disabled to Automatic. 

If the service status says Stopped, click the Start button underneath. Click Apply, then OK. Reboot your system fully. 

Method 5: Run a Hard Drive Volume Check  

Occasionally, small errors or misalignment can occur on your hard drive. This can prevent Windows from committing new files. 

1. Open Command Prompt (Admin) by searching in your Start Menu. 

2. Type chkdsk /f C: and press Enter. 

3. You’ll receive a message stating it will run as a manual task at the next reboot. Type Y and press Enter. 

4. Reboot your device. While Windows starts, it will run a full check of your drive. 

Method 6: Bypass the Engine via the Microsoft Update Catalog  

If you’re having issues with just one patch, you can skip your system’s update engine entirely. Simply download a standalone self-installer. 

1. First, go to Settings > Windows Update > Update history. Note the code of the failed update (It will always start with KB, e.g., KB50XXXXX). 

2. After that, open your web browser and visit the official site: Microsoft Update Catalog. 

3. Then, type your KB number into the search box and press Enter. 

4. After that, carefully review the results. Find the option that matches your Windows version and Processor: 

• X64-based: Standard modern Intel/AMD processors (found on almost all standard laptops/desktops). 

• ARM64-based: Modern ultra-thin devices with high-efficiency mobile processors. 

5. Lastly, click Download next to your correct version. Click the link to download the .msu file.  

Open it like any other program. Follow the on-screen prompts to patch your PC. 

Hexadecimal Error Code Quick-Reference 

When an update fails, Windows generates an eight-character alphanumeric error code.  

Moreover, you can use this clear table to map your exact code to its probable cause and immediate fix: 

Also check: What Is 5xx Server Error? What Does It Mean?

Advanced Solutions: Resolving Persistent Loops  

If your computer still fails to fix itself and keeps looping “Undoing changes made to your computer,” you have a deeper problem. To fix this safely, Microsoft provides two options. 

Option One: Native Cloud Reinstall (Only applicable to Windows 11) 

Newer versions of Windows 11 have an intelligent cloud-based tool to download and then install a new clean version of your OS. This will fix any underlying problems. 

• Click Start > Settings > System > Recovery 

• Click Fix problems using Windows Update and then Reinstall now. 

This will allow your device to check with Microsoft’s cloud servers and download a clean version of your OS.  

This will clean any hidden corruption whilst leaving your documents, photos, and 3rd-party applications. 

Option Two: In-Place Upgrade 

If you cannot see this option or are running Windows 10, you can install a fresh version of your OS files by performing an In-Place Upgrade. 

• First, visit the official Microsoft Software Download page and download the official disk image (.iso) file for your version of Windows. 

• Then, double-click the downloaded .iso file. This will open a new drive within your File Explorer. 

• Next, double-click the file called setup.exe. 

• Then, follow the prompts during the installation. When you get to the first screen, click ‘Change how Setup downloads updates’.  

• Lastly, select Not right now. This will ensure the update bug does not interrupt your installation. 

Important Step: Continue through the installation, and when you get to the last screen, make sure it shows ‘Keep personal files and apps’ and then click Install.  

Moreover, your device will now go through a long reboot process to replace your out-of-date and faulty OS files. 

Proactive Risk Mitigation: Staying Error-Free  

To help prevent this issue in the future, you can do the following. 

• Turn On Storage Management 

Go to Settings > System > Storage. Then turn on Storage Sense.  

This will automatically manage your storage by clearing unnecessary files, including temporary folders, old installation logs, and duplicates in your Recycle Bin.  

Moreover, this will ensure there is always enough space on your device for the monthly security updates. 

• Check Device Stability 

If your device acts strangely after an update, type ‘view reliability history’ into your Start menu.  

This will open the Reliability Monitor. It shows a daily breakdown of what’s been happening in the background on your device.  

This includes any crashing applications, hardware issues, and patches.  

• Don’t Force Major Semi-Annual Feature Updates 

If your friends are getting an update for a major semi-annual feature but you are not.  

Don’t attempt to force this update. Microsoft will automatically block updates if it detects a conflict with your drivers or applications.  

This helps keep your PC stable until a fully compatible patch is available for your device. 

References 

• The official Microsoft Support Windows Update Troubleshooting Hub. 

• Microsoft Windows Update: FAQ Portal.