KMSAuto vs MAS (Microsoft Activation Scripts)
KMSAuto and Microsoft Activation Scripts (MAS) are the two most popular free activators. KMSAuto offers a GUI with one-click HWID/KMS/Ohook; MAS is a PowerShell-based menu system maintained by WindowsAddict. Here's how they compare. If you are still deciding which KMSAuto build to use, read the KMSAuto download hub first.
Interface
- KMSAuto: native Windows GUI, dark theme, one-click buttons.
- MAS: text-based PowerShell menu, scriptable, no installer.
- KMSAuto is friendlier for non-technical users; MAS is preferred by sysadmins for automation.
Methods supported
- KMSAuto: HWID, KMS, Ohook, TSforge, Online KMS — all integrated.
- MAS: HWID, KMS, Ohook, TSforge — same core methods, exposed via menu.
- Both source from the same open-source upstreams (vlmcsd, ohook, tsforge).
Safety and trust
- MAS is fully open-source on GitHub (kmsfull.com/Microsoft-Activation-Scripts) — every line auditable.
- KMSFull.com ships SHA-256 hashes and VirusTotal links; the activator components are the same upstream binaries.
- Neither tool contacts third-party servers — both run locally.
When to pick each
- Pick KMSAuto for: GUI workflow, batch activation of Windows + Office in one click, novice users.
- Pick MAS for: scripted deployment, SSH sessions, headless servers, full source transparency.
- Both produce identical activation results.
Frequently asked questions
▸Are KMSAuto and MAS the same thing?
No, but they're cousins — both wrap the same upstream activation libraries (vlmcsd, ohook, tsforge). KMSAuto adds a GUI; MAS keeps everything in PowerShell.
▸Which is safer?
MAS has the edge because it's fully open-source on GitHub. KMSFull.com publishes binary hashes for verification, which provides comparable assurance for non-developers.
▸Can I use both on the same machine?
Not simultaneously — they would fight over the same licensing slots. Pick one and stick with it.
▸Does MAS work on Office 2024?
Yes, the latest MAS supports Office 2024 via Ohook, same as KMSAuto.
▸Which is updated more often?
MAS releases on a faster cadence (every 1-3 months). KMSAuto's GUI release cadence is roughly quarterly.
▸Can I activate Windows 11 24H2 with both?
Yes — both support 24H2 via HWID and TSforge.
▸Which uses less disk space?
MAS is ~5 MB (text scripts). KMSAuto is ~15 MB (GUI + bundled tools).
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