If successful, the Command Prompt will display a message stating: "Microsoft Office rearm successful." Your Office evaluation period has now been reset for another 30 days. How to Verify Your System's File Integrity
Antivirus programs sometimes flags third-party, modified versions of this file as a Trojan or unwanted program, deleting it from the system directory.
: Malicious actors bundle trojans, spyware, or cryptominers into files named ospprearm.exe to trick users.
ospprearm.exe is a legitimate Microsoft tool included with volume-licensed installations of Microsoft Office (Office 2010, 2013, 2016, 2019). , which are often packed with malware. 1. The "Verified" Location (No Download Required)
🚩 This can typically only be done a limited number of times (usually 5).
Once you've located the genuine OSPPREARM.EXE file in your Office installation directory, follow these steps to perform a rearm:
☐ — use PowerShell's Get-FileHash command to verify against known clean hash values
The file is a legitimate utility created by Microsoft . It is specifically used to reset (rearm) the licensing status of Microsoft Office applications. 🛡️ Key Facts Official Name: Microsoft Office Software Protection Rearm.
Run it from an elevated command prompt:
cd "C:\Program Files\Microsoft Office\Office16" cscript ospp.vbs /rearm
Cybercriminals know that users searching for "ospprearmexe download verified" are often frustrated with activation errors. They prey on this urgency. Files labeled as "verified" or "clean" on third-party DLL download sites, torrent platforms, or random forums frequently contain:
Have you ever opened Microsoft Word or Excel, only to be greeted by a frustrating "Product Activation Failed" message? For many users, the search for a solution leads to a name that sounds like technical jargon: . This small but powerful utility is Microsoft's own built-in tool for resetting the activation state of Office products. However, with third-party download sites offering the file, a critical question arises: how do you download OSPPREARM.EXE safely?
If your interest in "ospprearm.exe" stems from troubleshooting, reactivating Office, or preparing for an Office upgrade, here are some general steps:
If OSPPREARM.EXE is missing:
If the Digital Signatures tab is missing, or the signature says “Invalid” or “Not trusted,” —it is not a legitimate copy.
Running this file resets that grace period timer back to its maximum days.
To use the tool to reset your Office evaluation status, follow these steps: Close all open Microsoft Office applications. Open the Windows Start Menu and type . Right-click Command Prompt and select Run as administrator .