Tip: If you are running a 32-bit version of Office on a 64-bit version of Windows, look inside the Program Files (x86) folder instead. Step 2: Run Command Prompt as Administrator
Work for All Office Products
What (e.g., 2019, 365) are you currently using?
Right-click on and select Run as administrator . Step 2: Navigate to the Office Directory
To use the tool effectively, you must have administrative privileges. 1. Open Command Prompt as Administrator Click . Type cmd . Right-click Command Prompt and select Run as Administrator . 2. Navigate to the Office Directory Download BEST Ospprearm.exe
To utilize the built-in tool to extend your license configuration, follow these exact technical steps using the Windows Command Prompt. Step-by-Step Instructions : Press the Windows Key . Type cmd . Right-click Command Prompt and select Run as administrator . Navigate to the Directory :
It is primarily designed for IT administrators to prepare workstation images (like sysprep) or troubleshoot volume licensing issues.
What specific or activation issue are you currently facing?
If the repair option does not resolve the issue, uninstall Office completely and then download a fresh copy from your Microsoft account or through your organization’s volume licensing portal. This guarantees that every component, including OSPPREARM.EXE, is correctly installed and digitally signed. Tip: If you are running a 32-bit version
In this guide, we’ll explore what this file does, why it’s considered the best tool for Office management, and how to use it safely. What is Ospprearm.exe?
Which (Windows 10, Windows 11, etc.) is your computer running?
Copy the path where you found your file, put quotes around it, and press Enter. For example, if you are using a modern version of Office, type or paste the following command exactly as shown: "C:\Program Files\Microsoft Office\Office16\ospprearm.exe" Use code with caution. Press . Step 4: Verify Success
The site looked like it was from 2005—blinking banners and "Download Now" buttons that seemed to jump under his cursor. Ignoring the warnings from his browser, Leo clicked the biggest button. The file, named BEST_Ospprearm_Fixed.exe , landed in his downloads folder. Step 2: Navigate to the Office Directory To
A message stating "Microsoft Office rearm successful" should appear.
Common File Paths for Office 2016, 2019, 2021, and Microsoft 365:
This means you entered the wrong directory path. Verify whether your Office installation is 32-bit or 64-bit, and ensure the folder name (like Office16 ) matches what is physically on your C: drive. "Error: 0xC004FE00" or Failed Rearm