Let’s try simple troubleshooting method and check if this helps. Follow the below methods.
Method 1.
For the issue with Windows update. I suggest you to run the Windows Update troubleshooter it will automatically fix some common problems installing updates and check if it helps to resolve the issue. Click the below link
http://go.microsoft.com/?linkid=9830262
Method 2.
Step 1.
I would recommend you to run app troubleshooter and check if it helps. Follow the below link to run app troubleshooter.
http://windows.microsoft.com/en-us/windows-10/run-the-troubleshooter-for-windows-apps
If the issue still persist, try the below steps.
Step 2.
I would suggest you reset the Windows app store and check if it helps.
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Type "Run" on the search bar and hit enter.
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Now type: "WSReset.exe" and hit enter to reset the Windows apps store.
Please get back to us with the status we will be glad to help you.