Windows 10 Product key is not accepted

I bought and downloaded Parallels Desktop 16 on my iMac Catalina 10.15 and bought in a store Windows 10 on DVD. During the download of Parallels we continued to download Windows (it was offerd by the Parallels download process) - so we did not use the DVD. At the end of the dwonload we should enter the Windows 10 Product Key, and we entered the key from the DVD package I had bought, but the system did not accept it "wrong Key" Error: 0xC004F213.
Windows does not identify the key as an original key. I wonder it it comes because we did not use the DVD?
Would it be possible to download Windows a second time via the DVD, although it is already downloaded?
Thank you for some help.

 

Yes, the edition installed and the key you have for does not match. Yes, you can create a new VM using the DVD.

 

Thank you very much, Ajith, for your answer. I will try to follow the instruction.