Unlock Microsoft Office for Life: A Step-by-Step Free Activation Guide (2025)

Tired of Microsoft Office asking you to activate every few days? Want lifetime access without paying a fortune? You’re not alone. In this blog post, we’ll walk you through a proven, step-by-step method to activate Microsoft Office for life — absolutely free.

 Disclaimer: This guide is for educational purposes only. We do not encourage software piracy. Please consider supporting software developers by purchasing licensed products if you can afford it.

 What You’ll Need

Before we get started, here’s what you’ll need:

  • A PC with Microsoft Office installed (2016 or later)
  • A stable internet connection
  • Admin access to your computer
  • A few minutes of your time

 Step-by-Step Guide to Activate Microsoft Office for Life (Free)

Step 1: Visit the Right Resource

Go to https://massgrave.dev/, the one-stop hub for safe, open-source activation tools.

Step 2: Download the Activation Script

  • On the homepage, scroll down and click on “Microsoft Activation Scripts”.
  • This will take you to a GitHub page.
  • Download the ZIP file from the “Download” section.

Make sure you’re downloading from the official GitHub link to avoid malware or fake tools.

Step 3: Extract the Files

  • Once downloaded, right-click the ZIP file and extract it using built-in Windows extraction or software like WinRAR or 7-Zip.
  • Open the extracted folder.

Step 4: Run the Activation Script

  • Look for the file named MAS_AIO.cmd.
  • Right-click and choose “Run as Administrator”.

Windows Defender may flag the script, but this is a false positive. Temporarily disable real-time protection if necessary.

Step 5: Choose Activation Option

  • Once the script opens, you’ll see a list of options.
  • Type 1 to choose “Activation”, then press Enter.
  • Then choose 1 again to activate Microsoft Office.
  • Wait a few moments for the script to complete the activation process.

Step 6: Confirm Activation

  • Open Microsoft Word or Excel.
  • Go to Account and check if it says “Product Activated”.

 That’s it! You now have Microsoft Office fully activated — for life.

Optional: Use HWID Activation for Windows

If you also need to activate Windows, the same script supports HWID (Digital License) activation for Windows 10 and 11. Just run the script again and select the Windows activation option.

 FAQ

Is this safe to use?
Yes, the script is open-source, meaning the code is transparent and community-reviewed. Still, always download directly from the GitHub page linked on massgrave.dev.

Will I still get Office updates?
Yes! Activation via this method doesn’t block Microsoft updates.

Do I need to repeat this every few months?
No. Once activated, you’re set — unless you reinstall Office or reset your PC.

Final Thoughts

Microsoft Office is essential for productivity — and now, you know how to keep it activated for life without paying hefty subscription fees. Whether you’re a student, entrepreneur, or casual user, this method saves you time, money, and hassle.

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