How to Repair Microsoft.Windows.Appx.PackageManager.Commands.dll …
https://www.exefiles.com/en/dll/microsoft-windows-appx-packagemanager-commands-dll/
Use the SFC tool to fix missing or corrupt Microsoft.Windows.Appx.PackageManager.Commands.dll files (Windows XP, Vista, 7, 8, and 10): Hit the Windows Startbutton In the search box, type "cmd" but DO NOT PRESS "ENTER". Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER". You'll be prompted with a permission dialog box. In the box, click "YES". You should have a black screen with a blinking cursor. In that black screen, type "sfc /scannow" and hit "ENTER".
Hit the Windows Startbutton
In the search box, type "cmd" but DO NOT PRESS "ENTER".
Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
You'll be prompted with a permission dialog box.
In the box, click "YES".
You should have a black screen with a blinking cursor.
In that black screen, type "sfc /scannow" and hit "ENTER".
DA: 13 PA: 59 MOZ Rank: 65