fix windows 11 update error code 0x800f0991

Windows 11 Update Error Code 0x800f0991 – 5 Ways to Fix

Some users are facing issues while installing the Windows 11 update. If you are also getting the windows install error code 0x800f0991 when updating to the Windows 11 Insider Preview, this blog will list out DIY methods to fix the issue easily.

There can be some minor issues that can trigger this error.

So, if you are looking for an effective and hassle-free solution, here we will explore some effective ways and methods to overcome the 0x800f0991 update error in Windows 11.

Methods to Fix Windows 11 Update Error Code 0x800f0991

windows update error code 0x800f0991

Some preliminary measures while you try to fix update error codes in Windows 11 can involve making sure you have enough freed up hard drive space.

You should also disconnect any external storage device before trying to fix the Windows 11 update error 0x800f0991. In fact, backing up your important personal files is always a good idea before manual troubleshooting errors.

Try some of the following tips to fix windows 11 update error code 0x800f0991 and install the updates.

#1. Run Basic Troubleshoot

The first thing you should do is run a basic Windows update troubleshooter to detect and find the basic errors and fix them.

Turn off any third-party antivirus or any background work (check taskbar), for this to work effectively:

Follow the steps:

  • Go to settings.
  • Find the “update and security” option.
  • Go to troubleshoot.
  • Now, click on Windows update and run the troubleshoot.
  • Detect the error and find the accurate solution.

This should be your first plan of action, and it may not work. So, try the following methods next.

#2. Addressing Windows Update Related Services

Checking Windows update-related services is important as these services are responsible for downloading and installing the Windows update. If these things do not work correctly, it will cause Windows 11 update error 0x800f0991 while installing the updates.

To find and resolve the error, we have to follow the following steps:

  • Open the run dialog box.
  • Type “services.msc” and search.
  • Open the background intelligent services from the services window.
  • Go to the “startup type field” and select “automatic” from the menu.
  • Start the “services status” by clicking on it.
  • Now, click on apply and ok, and save.
  • Then, follow the same process with Windows update and cryptographic services from the services menu.
  • Now, restart the computer and check for the install error – 0x800f0991 Windows update.

Your update issue should resolve after this. You can also try manual installation to prevent the error 0x800f0991 from displaying again.

#3. By Manually Performing the Updates

One of the best solutions to solve Windows 11, version 23h2 install error – 0x800f0991 is to install the updates manually. It can help in detecting the issue while automatically installing.

microsoft update catalog

To initiate the process further, you need to install the KB version of the “Microsoft update catalog”.

Let’s see how things work in a few steps:

  • Go to the Windows update and open the “view update history”.
  • Copy the KB number of the failed update from the update history.
  • Open the “Microsoft update catalog” and search that KB number from the search bar.
  • Now, find the correct version to install the updated OS (install after confirming it suits Windows 11 or your system architecture).
  • Now, follow the thereafter process to finish.

Restart the computer after completing these steps and the install issue should get resolved.

#4. Disk Cleanup

Cleaning the disk can preserve your PC performance as the removal of temporary files, junk files, or any malicious things can keep your system running smoothly.

If you are facing Windows 11 update error 0x800f0991, there might be the possibility that it can be solved by cleaning up the disk.

So, to perform the function, just follow a few steps:

  • Open the “disk cleanup” from the Windows search bar.
  • Find the “clean up system files”.
  • Select the drive and click ok.
  • In the list for cleaning the data, select the data with higher storage like Windows updates and temporary files.
  • Now, click on ok to start the process.

This is a fairly easy process, and you should be able to execute the steps on your own. If none of the above solutions work, you can also try downloading installation media for Windows 11 from the Microsoft official website.

#5. By Using Installation (Media Creation)

Media creation tool can be one the most effective tools that can resolve the install error – 0x800f0991 Windows update.

download Windows 11 installation media

If none of the above methods can resolve the issue, the “media creation tool” can do your work. Just follow the process step by step:

  • Go to the Microsoft download official page.
  • Download the “Windows 11 installation media”.
  • Finish the initiations by agreeing to terms and other conditions.
  • Select “Upgrade this PC”.
  • After clicking on next, windows will start to download the files.
  • Now, after downloading the files, agree to the terms and conditions, and click next.
  • Click on Install to finish the process.

By applying these methods, you can easily fix the Windows 11, version 23H2 install error – 0x800f0991. If nothing works, you can also go for third-party tools to resolve this issue by taking care of minor things like malfunctioning or any bugs.

If you are not able to fix the error code and the issue continues, then either contact and engage the “Microsoft support” services or seek an expert and technicians. However, most people would be able to fix the windows error code 0x800f0991 by following the above steps.

Windows 11 Update Error Code 0x800f0991 – Final Note

Install error – 0x800f0991 Windows 11 update can be frustrating for an average Windows user while installing updates. But if you know the same basic and simple methods as we have discussed above, you’ll be able to resolve the errors effectively.

Keeping things simple and approaching the methods correctly can help you, but if you are facing the problem again and again, you should take the help of “Microsoft support” and experts who can guide you in the right direction.

Adding to it, keeping the system updated, using an anti-virus, removing unnecessary files and software, removing temporary system files, and taking care of other minor maintenance techniques can help you in avoiding recurring issues like install error – 0x800f0991 Windows 11 update.