: This is a reset tool, not a way to get Office for free forever. You will eventually need a valid Product Key.

The Ospprearm.exe utility is a specialized tool used to reset the licensing status of Microsoft Office 2016. If you are seeing a "Product Activation Required" message or using a trial version, this tool can extend your grace period. What is Ospprearm.exe?

C:\Program Files\Microsoft Office\Office16

Because it is a built-in system tool, it is already on your hard drive if Office 2016 is installed. You can find it in the following default directory:

: If the command fails, ensure the "Office Software Protection Platform" service is running in your Windows Services menu. Safety Warning: Avoid Third-Party Downloads

To run the rearm command correctly, you must use the Command Prompt with Administrative privileges. : Press the Windows Key and type cmd .

: You can usually only use this command 5 times . After that, the "Rearm" function is locked.