Minecraft is currently not available in your account. Here’s the error code, in case you need it: 0x803F8001

Hi Allen,

Having a corrupted game file is one of the potential reasons why you're getting this error: 0x803F8001 when launching the game Minecraft. To help you resolve this concern, we need to gather more details. Kindly answer the questions below:

• Have you made any changes on your computer prior to this concern?
• Are you experiencing this issue with your other games?
• What are the troubleshooting steps you have done so far?
• Have you tried uninstalling and reinstalling the affected game?

Meanwhile, we recommend that you run the troubleshooter for Windows apps. This can help remove problems with an app from Microsoft Store. To do this, you may click the link below:

Click here

Thanks for your reply. Minecraft mysteriously began working shortly after I started this Forum Thread. If I had a corrupted game file, then it healed itself.

FYI

• Have you made any changes on your computer prior to this concern?

No, but there was a mysterious Windows Pro Activation issue which was resolved by Microsoft Activation Person via a Chat session and a remote connect to my PC. My Windows 10 Pro was up-to-date, v1709 (Build 16248) and activated with a Digital License. I updated it some time ago from version 8.1 which originally came from a DVD Install disc with a Product Key. The Microsoft person had to generate a new Product Key after trying every other activation process known to them.

• Are you experiencing this issue with your other games?

No, the Minecraft JAVA Edition worked correctly.

• What are the troubleshooting steps you have done so far?

I tried downloading the Minecraft Windows 10 Edition from the Microsoft Store, but it said I already owned it, see previous message screen print attachment. I ran SFC / scannow which returned zero errors. I ran CHKDSK C: which found no errors. I Ran Troubleshooter for Windows Apps which found nothing wrong. Finally, I tried a Windows App Reset for Minecraft, but the game still would not start.

• Have you tried uninstalling and reinstalling the affected game?

See previous answer.

I think the problem occurred because of the new Product Key which was generated the day before via Microsoft Activation Chat Session. I don't know why the game mysteriously started working.

Have a great day! 

Thanks for answering the questions above. We're glad to know that the issue has been resolved. If you have any other concerns, feel free to post anytime.

Regards.