Windows 10: win 1o to 10 pro upgradation

i hv brought a new lappy with win 10 home .i used win 10 pro in my prev lappy which was retail ver beacuse in hv brought win 8.1 pro separately and upgraded it. i hv lost the keys but they are digitally lisenced. can i use it in my new lappy!!!!!

:)

 

Win 10 Home to Pro upgrade

How do I upgrade from Win 10 Home to Win 10 Pro with a digital Licence. The in structions say

• If you have a digital license for Windows 10 Pro, and Windows 10 Home is currently activated on your device, select
  Go to Microsoft Store and you'll be prompted to upgrade to Windows 10 Pro for free.
  

Fine, but how do I get a digital Licence for Win 10 PRo??

Going to Microsoft Store via the upgrade with digital licence link, provides no opton for upgrading.

Any solution??

 

upgrade Win 7 Pro to Win 10 Pro

I have several times tried to upgrade my desktop (dual boot Win XP and Win 7 Pro) to Win 10 Pro using the downloaded ISO file, and keep my personal files and apps. It runs about 36 hours then fails. How can I make this upgrade? If not using the ISO file
is there another method to accomplish this ??

Thanks for suggestions.

 

win 1o autoplay won't work.

win 1o autoplay won't work. Have reinstalled win 10, no joy. Atuplay is set to ON. Current_user_ registry entry show no value under policies.