

Thanks to the reports from users, the common reasons for this issue and the corresponding methods are gathered and listed in the following contents. It could be hard for you to figure out the specific reason for the error in your case, but you don’t need to worry. This issue might be caused by various factors, such as server issue, corrupted Microsoft Store cache, and etc. Just as the following screenshot shows, this error comes up commonly with a message that Something unexpected happened and Code: 0x803FB107. However, some users complain on the forum that the 0x803FB107 error prevents them from downloading programs or games sometimes. Microsoft Store is a built-in tool in Windows 10 that allows users to obtain programs conveniently.

If you are experiencing the same issue, this post is what you need. The 0x803FB107 error has been reported by plenty of Windows users while downloading applications or games via Microsoft Store.
