If you are receiving error messages regarding activation or you need to extend the grace period to set up a KMS server, you can run the tool using the Command Prompt.
is a legitimate Microsoft Office file used to reset Office's activation grace period (rearm) — typically for volume licensing versions. Ospprearm.exe Office 2016 Download
This tool only resets the timer . To use Office permanently, you must activate it with a genuine product key or via a Microsoft 365 subscription. If you are receiving error messages regarding activation