Choose the option to install the activation (e.g., 1 for "Activate Office") [5.1].

To make sure you get the best method for your setup, are you using: (ProPlus)? Office LTSC Professional Plus 2024 / 2021 ? Windows 10 or 11 ?

Only use trusted open-source scripts like MAS. Avoid third-party executables labeled ".exe" for activation, as these are high-risk for malware [5.26].

This method typically involves running a script that tricks Office into connecting to a local emulator instead of Microsoft servers.

Set the KMS server: cscript ospp.vbs /setkms:kms7.office.com (or another active KMS server) [5.20]. Activate the key: cscript ospp.vbs /act [5.17]. Important Considerations

Join the Microsoft 365 Developer Program for a free, renewable 90-day subscription [5.21]. Pre-Requisites

###Alternative: Command Prompt (Manual) ActivationIf you have a Volume License (VL) version, you can activate via CMD: Open CMD as Administrator.

Activating Microsoft Office 365 ProPlus (or Office LTSC Professional Plus) without a official subscription is generally achieved through emulation tools . The most prominent and widely used method as of 2026 is the Microsoft Activation Scripts (MAS) , which uses a KMS-based approach, often referred to as "Ohook" for Office [5.5, 5.24, 5.26]. ⚠️ Security Warning & Disclaimer