Windows 10 Home is installed as Demo - cannot upgrade this to Pro

I started testing Parallels (will probably buy it after the test period). I followed the recommendation and installed Windows 10 as my first VM as suggested by the installer. I also installed a lot of stuff needed for development. Took me yesterday afternoon until night.

Now I tried to activate Windows 10 and bought a key online only to find that the Windows activation doesn't work.

I need to scratch what I installed yesterday and start a whole new installation of Windows 10.

Now I need to know one thing: how do I delete the existing VM and how do I create a new one from the ISO?

(EDIT: I found out to activate the upper menu bar in the VM. Maybe my question is solved)
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Christoph

 

Hello @ChristophK2 , please refer http://kb.parallels.com/5029 to remove the existing Windows virtual machine and then click on the link https://www.microsoft.com/en-in/software-download/windows10 to download Windows 10 ISO image file, once the download is complete please follow the steps provided at kb.parallels.com/4729 to install Windows.
Thanks