Windows 10: No Product Key Found, Error Code 0XC004F213, After Working Fine For Several Months

I want to encrypt some files, and paid to upgrade to Windows 10 Pro, had been running Windows 10 Home since sometime in June. Now it says it can't find the original product key, and won't let me upgrade. The troubleshooter says: Windows reported no product key found, Error Code 0XC004F213, click here to help. I click on that and it says, "We can't activate your copy of Windows. Make sure you're connected to the internet and try again....."


At a loss and would appreciate any insights. Thanks!

:)

 

Error code 0xC004F213

Hi there Nguyễn, I will be your Independent Advisor for today, I hope we can both resolve your problem.

Error indicates that Windows reported that no product key was found on your device. Follow this link

https://support.microsoft.com/en-us/help/10738/... and go to the error code for 0xC004F213.

How did you acquire the license for this PC?

Did you make any hardware changes?

https://support.microsoft.com/en-us/help/10738/...

 

Windows 10 will not activate Error code 0x803F7001

Possibly there can be the problem with Microsoft activation Server, so your Windows 10 is not activated. In this scenario, you need to wait and verify if it is the issue from Microsoft’s side. But if you are getting error code 0x803f7001, you can also try these steps:

1. Open Settings app. Then go to Update and security > Activation screen > Change product.
2. Type your Windows edition product key and click Next.
3. You’ll get We couldn’t activate Windows error message.
4. Retry steps 1-3 then type your 25-characters unique product key.
5. Wait for the process to complete, Windows 10 is activated.

Hope something helps this problem

 

Moved hard drive to new PC, now product key is lost: error code 0xC004F213

Hi there!

I'm Louie, a Microsoft Community member and a fellow Windows 10 user like you. Hope you're doing well and safe there.

We highly recommend you to try the steps provided on this link under error code 0xC004F213 for solutions:

https://support.microsoft.com/en-ph/help/10738/...

Hope this helps.

Sincerely,

Louie