How to fix Windows 10 Update Error Code 0x80073701

The error code 0x80073701 is usually down to missing system files. In long terms, the error suggest there is ‘ERROR_SXS_ASSEMBLY_MISSING. Don’t worry, one of these below should help you with this issue!

How to fix Windows 10 Update Error Code 0x80073701
How to fix Windows 10 Update error 0x80073701

Windows 10 is one of the most used operating systems to date, and still has problems when attempting to update the systems. In this guide, we’ll help you get through with any potential errors that you may face when trying to update Windows 10.

The error code 0x80073701 is usually down to missing system files. In long terms, the error suggests there is ‘ERROR_SXS_ASSEMBLY_MISSING'.  Don’t worry, one of these below should help you with this issue!

1. Use the Windows Update Assistant

One of the ways that we’ve learned to use, is using the Windows 10 Update assistant. We should mention that this only works when you are going from one major version (1607,1709,1803,1809 etc.) to the latest. To use this, head over to the Windows 10 download page. This will then show you at the top if you’re able to update with the latest and will give you an option for ‘Update Now’. If you go here and then follow through the steps, you will be on the newer version which can fix many issues, including the update issues. 

Download Windows 10 Update

2. Run the Windows 10 Update Troubleshooter

Windows included the latest troubleshooter to their software called the Windows 10 update troubleshooter. To get to this, simply type in ‘Troubleshoot’ into your Windows search bar, and once in the settings find ‘Windows Updates’. Once clicked, click ‘Run Troubleshooter’ and let it work its magic. This may require administrative rights if you don’t have it! 

Windows 10 Troubleshooting Settings

Troubleshooting Updates Windows 10

3. Restart your PC

Although it might seem a little silly, simply shutting down, and restarting your PC can fix issues such as the update issues. This can be services that are not started, and restarting your PC will kick them back into shape. 

4. Make sure you have enough disk space.

When you’re running low on disk space, you would think the updates would let you know that it can’t installed due to this. Wrong. It will throw up a generic error but won’t tell you if it’s down to space. To check this, go to your file explorer and then “This PC”. Once there, look for the ‘C:’ drive area and I would suggest having at least 20 GB of space free, for any updates even though this is over scaling it a little bit. 

Windows 10 Disk Space for Updates

5. Use ‘Check for updates online’ instead of the ‘Check for updates’. 

Sometimes, and depending on the environment your PC is set up, checking for updates locally doesn’t always work. If you have the option to ‘Check for updates from Microsoft’ or ‘Check for updates online’, it’s always better to go for this option. This will display in the same place as your normal updates. 

6. Attempt a DSIM Repair

Sometimes your PC may run into some problems due to files being corrupt or broken. One way you can see if this is the case is to run a DSIM repair. What this does is resolve issues with the Windows 10 image running on your system. To do this, you need to use the command line. 

First, open up the command line by typing in your search ‘CMD’. 
(Note: If you’re not an administrator on your PC, right-click and run as administrator’. )

Windows 10 Command Prompt

Once in your command line, type the following command in;

DISM.exe /Online /Cleanup-image /Restorehealth

Once entered, it will then run its processes. Don’t worry, this can take a significant amount of time depending on your PC. It may be worth grabbing a coffee or two. 

Once complete, it will let you know if there are any problems with your image and will repair them if possible. 

Windows 10 DISM Scan for Windows 10 Updates

7. Contact Microsoft Support

Even though Microsoft may not the best with support, they still do support you with issues such as this. You can contact Microsoft support here and let them know what you’ve done, what the error is and they can most likely pinpoint issues with your system or at least point you in the correct direction.  

8. Reinstall Windows 

We would suggest this as a last resort. Windows 10 can be quite difficult to understand and even more so when errors are occurring. If all the above haven’t helped, it may be worth looking to repair or reinstall Windows. If you’re uncomfortable with this, it may be worth looking into getting a professional to help or, we will have a guide on this soon!

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