Windows Store sometimes fails to open. Sometimes, it is syncing problem. In that case, you can check the time zone and country. if that doesn’t work, then re-registering Windows Store can be a potential solution. This tutorial will show you how to re-register the Store for your account in Windows 10.
Steps to Re-register the Store in Windows 10
1. Right click on Start Button, go to Command Prompt (Admin) and open Elevated Command Prompt.
2. Copy and paste the following command
PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"
3. Close the Command Prompt and open Windows Store again.