Massgrave in 2026: What the Project Is and How to Use It

What people mean by "massgrave"

When someone searches for massgrave, they are almost always looking for Microsoft Activation Scripts (MAS) — an open-source collection of batch and PowerShell scripts that activate Windows and Office using documented licensing mechanisms. The name comes from the project's long-running community handle, and it has stuck as shorthand for the toolset itself.

There is no installer, no account, no telemetry and no compiled binary in the activation path. Everything is plain text you can read before you run it.

The four methods, in one table

Which one should you pick?

Most people should run HWID for Windows and Ohook for Office. That combination is permanent, leaves nothing running, and survives a clean reinstall in the case of HWID because the license is stored server-side against your hardware ID.

Pick TSforge when HWID reports your edition as unsupported, when the machine has no internet, or when you need Windows 10 ESU. Pick KMS38 when you want a very long expiry without a digital license. Pick Online KMS only when a security feature blocks the local methods.

Running it

The fastest route is the one-liner in an elevated terminal:

irm https://get.activated.win | iex

That pulls the current release into memory — nothing repackaged ever touches disk. If you prefer files, extract the archive to a short path such as C:\\MAS and run MAS_AIO.cmd as administrator.

Verifying

For Windows:

slmgr /xpr
slmgr /dli

"The machine is permanently activated" confirms HWID or TSforge. A 2038 date confirms KMS38.

For Office, from the install folder:

cscript ospp.vbs /dstatus

Look for LICENSE STATUS: ---LICENSED---.

The one real risk

The script has never shipped malware. Repackaged copies hosted on look-alike sites have. If a "massgrave download" is an EXE, an installer, or a password-locked archive with a password from a video description, it is not the project. Use the one-liner or read the batch file before running it.

Get the script

Open Terminal (Admin) or PowerShell (Admin) and run:

irm https://get.activated.win | iex

Prefer offline? Grab the archive from the download page and run MAS_AIO.cmd as administrator. More help: MAS script overview · Massgrave Windows guide · troubleshooting · error decoder.