MAS 1.3 is objectively the most advanced and safest tool available as of 2025.
| Feature | MAS 1.3 | KMSPico | KMSauto | | :--- | :--- | :--- | :--- | | | Open source, no malware | Often fake versions contain miners | Flagged by many antivirus | | Persistence | Permanent (HWID/Ohook) | 180 days (needs renewal) | 180 days | | System Files | No modification | Patches sppsvc.exe | Patches system files | | Method | Digital License Emulation | Emulated KMS Server | Emulated KMS Server | | Office Activation | Ohook (permanent) | KMS (temporary) | KMS (temporary) | Microsoft Activation Script 1.3 Win10 Office Ac...