Microsoft Store Won't Launch

Hello patrickmikk, 

Try re-registering Store app. Perform these steps: 

1. Search for Windows PowerShell using Cortana or Windows Search. 

2. From results, right click on Windows PowerShell and select Run as administrator. 

3. Then type following command and press Enter key: 

Get-AppXPackage *WindowsStore* -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"} 

Let the command complete. 

4. Close Windows PowerShell. 

Let me know if issue still persists!