Windows 10: I can't activate Windows on my device, because I don't have a valid digital license/product key

Like I said, that's it. Plus, when I troubleshoot it tells me install Windows 10 Home Single Language, but I can't find it in the Microsoft Store. Also, I tried suggestions in the web to find my product key, & when I tried to change the product key, none worked. I already got my email covered. Lastly, I'm not even sure if I should have a digital license/a product key. Please help me if you can, thank you. Now, how can I activate Windows on my device?

:)

 

cannot enter the product key

I downloaded the product key software to view the product key of my device then I entered the product key to activate windows, then the error message 0x803FA067 and content could not activate windows on this device because you don
't have a valid product key or digital license.
If you think you do have a valid license in key select troubleshoot below even though I have troubleshoot many times

 

No valid digital license/Product Key

Just bought a desktop off amazon the computer prompted me to activate windows i went to do so and got (Error code: 0x0C004Coo3) the message that came with it talks about no valid digital license/Product Key

 

Activation switched from "with product key" to "with Digital License"

I have 3 users on my pc - I have digital too

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. Depending on how you got your copy of Windows 10, activation will use either a digital license or a 25-character product key.


Digital license (called a digital entitlement in Windows 10 Version 1511) is a method of activation in Windows 10 that doesn't require you to enter a product key.


[table][tr] How you got Windows 10 Activation method [/tr] [tr][td]You upgraded to Windows 10 for free from an eligible device running a genuine copy of Windows 7 or Windows 8.1.[/td] [td]Digital license[/td] [/tr] [tr][td]You bought genuine Windows 10 from the Windows Store and successfully activated Windows 10.[/td] [td]Digital license[/td] [/tr] [tr][td]You bought a Windows 10 Pro upgrade from the Windows Store and successfully activated Windows 10.[/td] [td]Digital license[/td] [/tr] [tr][td]You’re a Windows Insider and upgraded to the newest Windows 10 Insider Preview build on an eligible device that was running an activated previous version of Windows and Windows 10 Preview.[/td] [td]Digital license[/td] [/tr] [tr][td]You bought a copy of Windows 10 from an authorized retailer.[/td] [td]Product key (On a label inside the Windows 10 box. A digital license will be given to your device for Windows 10 based on the valid product key you entered.)[/td] [/tr] [tr][td]You bought a digital copy of Windows 10 from an authorized retailer.[/td] [td]Product key (In the confirmation email you received after buying Windows 10 or in a digital locker accessible through the retailer’s website. A digital license will be given to your device for Windows 10 based on the valid product key you entered.) [/td] [/tr] [tr][td]You have a Volume Licensing agreement for Windows 10 or MSDN subscription.[/td] [td]Product key (Available through the web portal for your program.)[/td] [/tr] [tr][td]You bought a new device running Windows 10.[/td] [td]Product key (Pre–installed on your device, included with the device packaging, or included as a card or on the Certificate of Authenticity (COA) attached to the device.)[/td] [/tr] [/table]