License Install Failed For License Type: 1 Result Code: - 0xc03f6601

slmgr /ipk <your-product-key>

Follow these steps in order to resolve the issue.

Run as Administrator:

slmgr /dlv

Look for "License Status" and "License Type". slmgr /ipk &lt;your-product-key&gt;

  • License bound to different machine ID

  • Expired or revoked license

  • Certificate or signing mismatch

  • Network/activation server unreachable

  • Conflicting or outdated licensing service