Windows upgrade failed @ 10% with error code: 0xc004f050

Hello Dale,

This error typically indicates that the product key entered is invalid or not compatible with the version of Windows installed. Here are a few steps to help you move forward:

1. Confirm the Product Key Ensure that the product key you're using is specifically for Windows 11 Pro and not for another edition (e.g., Windows 10, Home, or Enterprise). If you're upgrading from Windows 11 Home, a valid Pro key is required.

2. Use the Activation Troubleshooter

Go to Settings > System > Activation

Select Troubleshoot to let Windows attempt to resolve the issue automatically

3. Try Manual Activation via Command Prompt If the GUI fails, you can try activating manually:

1. Open Command Prompt as Administrator
2. Run the following commands: Mã slmgr.vbs /ipk <your product key>
3. slmgr.vbs /ato
4. Replace <your product key> with your actual key.

4. Check for Windows Updates Ensure your system is fully updated before attempting the upgrade:

Go to Settings > Windows Update

Install any pending updates and restart your device

5. Contact Microsoft Support If the issue persists, we recommend contacting Microsoft Support and selecting “Windows > Activation & Licensing”. Our team can verify your product key and assist with activation.

Let me know how it goes, and if this answer helps, feel free to hit “Accept Answer” so others can benefit too 😊 T&B, Domic.