How to Repair: Windows Store Error Code 0x803FB107

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Have you noticed the error code? 0x803FB107 When you try to download something from the store under Windows 10? Many users encounter this problem for Forza Horizon 3 that prevents them from getting the game. In some cases, the application/game is about to complete the download, but at the last minute it fails.

There may be several reasons for the error code: 0x803FB107 as a failed network, lack of space on the computer, bandwidth intervention, weekly server (speed is low), incorrect settings in the operating system or system architecture. Many thanks to the Microsoft Forum for providing us with support tools to solve the problem and implement some changes in the Microsoft Store. To work around this problem, you must update, repair or reset the problematic Microsoft Store application, reinstall the game, run Windows Apps Troubleshooter, etc.

How to fix the Windows Store error code 0x803FB107:

Exclusion of a server problem

Before considering other repair strategies, we make sure that the problem is not beyond your control. There is a real possibility that the problem is due to a server problem. This may be planned maintenance in your area or simply an unexpected risk of failure.

If you think that the error code 0x803FB107 is due to a server problem, you can easily perform some checks to see if other users in the Windows store have the same problem. Here are 3 different services that allow you to search for problems with the Windows store:

  • Outage Report
  • ISItDownRightNow
  • DownDetector

November 2021 Update:

You can now prevent PC problems by using this tool, such as protecting you against file loss and malware. Additionally it is a great way to optimize your computer for maximum performance. The program fixes common errors that might occur on Windows systems with ease - no need for hours of troubleshooting when you have the perfect solution at your fingertips:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


Update Microsoft Store

The obsolete or non-functional Microsoft Store may be the reason for the error code: 0x803FB107 When you try to download the problem. You only need to update this application if an application relevant to your PC is available.
Here’s how to do it…

Step 1: First, click on the Microsoft Store icon in the taskbar.

Step 2: The application opens immediately on the screen. Go to the top right and click on the Show More button (three points). Then select the first option, Downloads and Updates.

Step 3: In the next window, click the Get Updates button to download updates immediately, if available.

Login and logout from the Windows store

It appears that this particular problem can also occur due to a temporary problem that is most likely caused by a network change. Some users who also encountered the 0x803FB107 error reported that they were able to solve the problem by simply logging out of Microsoft Store and reconnecting.

But keep in mind that this method is more of a workaround than a fix, as there is a good chance that the problem will sometimes happen again later.

Here is a quick guide to connect and disconnect from Microsoft Store:

  1. Open Microsoft Store by convention and click on your account icon (top right) on the screen. Then click on your account in the context menu.
  2. On the next screen, click the Logout button associated with your Microsoft account.
  3. Once you have logged out of your account, click on the account icon again and choose Login from the context menu.

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