As it turns out, some users are able to upgrade to Windows 11 via the Windows Settings app. However, not everyone is offered the upgrade just yet as Microsoft is periodically making it available to everyone despite it being officially launched today. This is to make sure that everything goes and the new operating system remains bugs free. In such a case, users have to resort to the Windows 11 Installation Assistant to forcefully upgrade to the operating system. In addition to that, a clean Windows 11 install is also an option that some might consider, however, we would not really recommend that as in that case you will have to format your system partition which means backing up important data and extra work. The error code in question, like we mentioned, can be triggered due to a number of reasons and before we show you how to resolve the issue, let us first go through the possible causes so that you are able to establish a better understanding of the problem in question. With that said, let us get started. Now that we have gone through the possible list of causes that may result in the error code, we can get right into the different solutions that are available to circumvent the problem in question. So, without further ado, let us dive in.

Run Windows 11 Installation Assistant as an Admin 

The first thing that you should do when you come across the error code in question is to run the Windows 11 Installation Assistant as an administrator. Like we have mentioned, the problem can sometimes occur when a third party application on your computer is interfering with the upgrade process. This can often be an antivirus software that you have installed on your system or any other application. We would recommend disabling your antivirus software while running the installation assistant to see if that fixes the problem. After that, when you run the installation assistant with administrative privileges, the third party services in the background won’t be able to intervene and the installation will be able to go smoothly. This is what fixed the issue on our end as it has for several others users too. Follow the instructions down below to run Windows 11 Installation Assistant as an admin:

Turn on User Account Control

If running the installation assistant as an administrator does not fix the problem for you, it might be due to the fact that User Account Control (UAC) is turned off on your computer. UAC is basically a security feature that prevents your computer from malware by running the applications without administrative privileges unless they are authorized by an administrator to run with admin access. You can easily turn on UAC via the Control Panel. To do this, follow the instructions given down below:

Free up Space on System Partition

As we have mentioned, one of the reasons that you may come across the error code mentioned above can be due to insufficient storage on your system drive. This is important as the installation assistant will download the Windows 11 on your system drive and then install it on the same partition. Therefore, if you are low on space on your system drive, the error might come up. Windows 11 requires you to have at least 64 GB free space. However, we recommend having at least 100 GB free just to be on the free side. In order to free up some space on your system drive which is usually C, you can use the Disk Cleanup utility in Windows.

Update Graphics Drivers

As it turns out, another reason due to which you may encounter the error code in question is when you have outdated graphics drivers. Using obsolete graphics drivers is never a good idea and it is really important to ensure that you are running the latest version available. In case your graphics drivers are outdated, you will have to uninstall them from the Device Manager and then download the latest version available for your graphics card from the manufacturer’s website, be it NVIDIA or AMD. To do this, follow the instructions given down below:

Perform SFC Scan

In some cases, the problem can also be triggered by damaged or corrupted system files. If this is applicable, you will have to perform an SFC scan on your computer to repair the damaged files. SFC or System File Checker is a built-in Windows utility that will validate your system files and then try to repair them if any files are missing. In addition to that, we will be following it up with using the DISM utility also known as Deployment Image Servicing and Management to repair any corruptions. To do this, follow the instructions down below:

Restore System Defaults via Third-Party Utility

As it turns out, most of us try to remove bloatware from Windows after performing an install or an upgrade. In addition to that, to make it easy, various third-party tools are used to change system settings. A famous tool for this purpose is the O&O ShutUp10++. If you have used this to change your system settings, you might have to restore the system defaults via the same tool to resolve the error code that is being triggered. This has been reported by a user who was facing a similar issue and fixed by restoring the system defaults. To do this, follow the instructions given down below:

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