Aunque no es la "moderna", funciona sin tienda y pesa 200 KB. Sigue estos pasos:

⚠️ If you get an error about missing dependencies (like VCLibs or UI.Xaml), download them from: https://www.microsoft.com/en-us/p/microsoft-uwp-vclibs/9wzdncrfjjmv (Use the same manual download + double-click method).

DISM /Online /Enable-Feature /FeatureName:Microsoft-Windows- Calculator /All