Hello. When you press the Windows key + R on your keyboard, type ms-windows-store://
and press Enter, do you still get the “You’ll need a new app” message, or does nothing happen?
Click Start, type powershell
, right-click Windows PowerShell, choose “Run as administrator,” then type this exactly and press Enter:
Get-AppxPackage -AllUsers Microsoft.WindowsStore
Do you see a long list of details, or does it say nothing was found?
Try those steps and tell me what happens so I can give you a more accurate solution.