Copy and paste the following master deployment command, then press : powershell

If you’ve seen the error “license install failed for license type: 1 result code: 0xc03f6601” while installing or activating software, it usually means the license installer encountered a validation or permission problem. Below is a practical guide to diagnose and fix the issue, plus best practices to avoid it in the future.

is the hexadecimal error code. When you see this in your Event Viewer, you'll also spot the Event ID 110 under the "Microsoft-Client-Licensing-Platform" source. In simple terms, the error means that the Software Licensing Service in Windows cannot find a valid license for your operating system or is having trouble installing it properly.

If the error occurs specifically while installing a game, repairing the app packages can fix underlying database glitches. Go to > Apps > Installed Apps . Find the Microsoft Store or Xbox App in the list.

Restart your PC and try activating Office again.

Before applying a fix, verify the environment using the built-in slmgr tool.

slmgr.vbs /dli

Missing critical operating system updates or outdated gaming services can prevent DRM (Digital Rights Management) verification. Step-by-Step Solutions to Fix Error 0xc03f6601

How to Fix "License Install Failed for License Type: 1 Result Code: 0xc03f6601"

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