No. OSPPREARM.EXE works only with volume‑licensed, perpetual versions of Office (2013, 2016, 2019, LTSC 2021). Microsoft 365 personal/family subscriptions use a different activation model and cannot be rearmed with this tool.
If the file is missing, you should repair your Office installation through the Control Panel rather than downloading a standalone EXE. How to Use OSPPREARM.exe to Fix Activation Errors ---- Ospprearm.exe Office 2016 Download
ospprearm.exe
Double-check your Office installation directory using File Explorer to see if your files are in Program Files or Program Files (x86) . 2. "Error: 0xc004f025" (Access Denied) If the file is missing, you should repair
Open File Explorer and paste one of the following paths (depending on your OS architecture): "Error: 0xc004f025" (Access Denied) Open File Explorer and
You can typically use this command up to 5 times , potentially extending a 30-day trial to a total of 180 days.
You entered the wrong file path for your architecture.