[W8.1 Update 1] "Windows Store failed to sync machine licenses. Result code 0x80070490"

In Scheduled Tasks, go to Task Schedule Library -> Microsoft -> Windows -> WS. Every time you would start WSRefreshBannedAppsListTask manually (or wait for an automatic start), you should receive the error message in the Event Viewer.

I have similar messages - it seems that some Apps were updated (like Music or Maps) hence the licenses have been checked. You can check Event Viewer -> Microsoft -> Windows -> AppXDeployment-Server to check what was updated.

I believe the user licenses for Apps are synched. The machine licenses sync for Apps fails. Why does machine license sync is triggered when WSRefreshBannedAppsListTask scheduled task is run (the task description is "Store Refresh Banned App List Task") is pretty interesting...

Do you happen to have any paid Apps installed? It would be interesting to see if they could be installed on a different Windows 8.1 device (assuming you use the same Microsoft Account used to purchase the App on both devices). I did not buy anything from Windows Store yet, so I cannot check.

Well having the same problem. The command DISM.exe /Online /Cleanup-image /Restorehealth hangs in 20% and then comes with the Error: 0x800f081f

This "Windows Store failed to sync machine licenses." error started 9th of this month.

Hello,

Thank you for keeping updated about the issue and quick response.

Please answer:

• Have you checked the date, time and time zone of your computer, are they correct?
• Is your computer activated?

If issue still persists I would suggest you to try the below steps and check if it works.

Step 1:

Please go to the link given below, download the file and run it.

Run Apps Troubleshooter

Download and run the Modern UI App troubleshooter.

http://download.microsoft.com/download/F/2/4/F24D0C03-4181-4E5B-A23B-5C3A6B5974E3/apps.diagcab

Step 2:

I would suggest you to go through the link and follow the given steps. Here is the link for your reference.

What to do if you have problems with an app

http://windows.microsoft.com/en-GB/windows-8/what-troubleshoot-problems-app

Hope this would help. If issue still persists post back with current status of your computer and result of the proposed suggestion, we will be happy to assist you.

Thank you.

Hello,

Thank you for posting your query on Microsoft Community Forum.

I would appreciate if you can provide us the following information to figure out the root cause of the problem.

1. Have you checked the date, time and time zone of your computer, are they correct?
2. Is your computer activated?

I want to inform you that these are some changes in Windows 8.1 update.

This update includes the following new features and improvements:

• Enables a more familiar mouse and keyboard functionality for modern apps and controls.
• Improves the web application compatibility of the Internet Explorer 8 emulation mode in Internet Explorer 11 F12 Developer Tools.
• Increases performance and reliability when you use multi-display configurations for portrait-first device experiences.

For more information, I would suggest you to follow the steps provided in the below link.

What’s new in Windows 8.1 Update and Windows RT 8.1 Update?

http://windows.microsoft.com/en-us/windows-8/whats-new

Try to disable Windows Store in Task Scheduler and check if it helps.

1. Move the cursor on the bottom-right and select the search box
2. In the search box type Schedule Task and click on Settings tab.
3. In next step, you will see the "Task Scheduler" Window. You have to click on **"Task Scheduler Library"**from the left pane.
4. In this step, select Windows Store and click on Disable from the selected item category in the right pane.
5. In the next step check that Windows Store is disabled or not.

Hope this would do help. If issue still persists post back with current status of your computer and result of the proposed suggestion, we will be happy to assist you.

Thank you.