Copy and paste the command matching your installation type, then press : For standard 64-bit installations: cd "C:\Program Files\Microsoft Office\Office16" Use code with caution. For standard 32-bit installations: cd "C:\Program Files (x86)\Microsoft Office\Office16" Use code with caution. Step 3: Run the Rearm Command Type the following command and press Enter : ospprearm.exe Use code with caution. Step 4: Verify Success
OSPPREARM.EXE is a powerful, built-in tool for resetting the activation grace period of a volume-licensed or trial version of Office 2016. It is not a separate program available for download but is inherently installed as part of the Office suite. While the rearm trick provides up to 180 days of extended trial time, users are strongly cautioned about the end of support for Office 2016 and the security risks associated with attempting to download this file from unverified online sources.
Note: "Office16" is the internal version number assigned by Microsoft to both Office 2016 and Office 2019. How to Use Ospprearm.exe Safely (Step-by-Step)
Office 2016 is currently in its phase (ending October 14, 2025). If you are looking to download or reinstall it, follow these official channels: ---- Ospprearm.exe Office 2016 Download
If you see error 0xc004d307 , it means you have exceeded the maximum number of allowed rearms. Troubleshooting Missing Files
Run a built-in Office Repair. Go to Control Panel > Programs and Features , select Microsoft Office 2016 , click Change , and choose Quick Repair . Conclusion
After running the tool, you can check the updated activation status: In the same Command Prompt window, type: cscript OSPP.VBS /dstatus Look for the Remaining Grace Period to confirm it has been reset to 30 days. Common Troubleshooting Tips Run as Admin: Copy and paste the command matching your installation
You generally download ospprearm.exe from third-party websites. Because this is a system file used to manipulate licensing, downloading it from an unverified source poses a significant security risk. Malicious actors often wrap malware or trojans inside files named after legitimate system tools like this one.
Are you getting a when trying to open Office? Is the file completely missing from your computer folders?
Its primary function is to reset (or "rearm") the licensing status of Microsoft Office deployment installations. Step 4: Verify Success OSPPREARM
Instead of searching for suspicious executables, use these legitimate methods:
But again, this only works for volume license editions.
need to download this file separately. It is included by default with your Microsoft Office installation. Depending on your version and system architecture, you can find it in one of these standard locations: 64-bit Office on 64-bit Windows: C:\Program Files\Microsoft Office\Office16 32-bit Office on 64-bit Windows: C:\Program Files (x86)\Microsoft Office\Office16 Common Files Location: