Changing Office 2016/2019 Keys with CMD

 

Change Office 2019 / 2016 Product Key with Command Prompt

1. Open the Command Prompt as administrator. Navigate to Office installation folder by running this command:
   cd C:\Program Files\Microsoft Office\Office16

    

   If Office 2019 / 2016 32-bit is installed on 64-bit Windows, type this command instead:
   cd C:\Program Files (x86)\Microsoft Office\Office16

2. Now, you can change your Office product key by running the command below:
   cscript ospp.vbs /inpkey:new_product_key

    

3. Finally, type the following command to immediately activate your copy of Office 2019 / 2016 installation:
   cscript ospp.vbs /act