An alternative solution to activating Adobe Acrobat DC for free is to use free alternatives to Adobe Acrobat, such as:
Save the file as activate_acrobat.bat (or any other name you prefer) on your desktop or a folder of your choice.
To activate Adobe Acrobat DC using CMD, you'll need to create a script that will simulate the activation process. Open Notepad and create a new file with the following content:
The software must already be on your system.