The file OSPPREARM.exe (Office Software Protection Platform Rearm) is a legitimate command-line utility developed by Microsoft. It is designed to reset the activation status of Microsoft Office, effectively extending the trial or "grace period" for a limited number of times (typically up to 5). Verified Ways to Obtain OSPPREARM.exe
- Accidentally delete the file.
- Run a “clean” Office installation that lacks it.
- Need to run it on a system where the path isn’t recognized.
- Find malicious “replacement” copies online from untrusted sources.
Important: Many “activation tools” bundle a fake
ospprearm.exethat disables Windows Defender or installs backdoors. If a download claims to “fix” activation without a genuine Office license, it’s not verified – it’s piracy. ospprearmexe download verified