https://www.groovypost.com/howto/transfer-windows-10-license-new-pc/
https://software.pcworld.com/p43717-windows_10_professional

types

1. OEM :
   1 device only , non-transferrable
   tied to a single PC and non-transferrable, (once installed and activated, they’re tied to that device)
   cheaper than full retail versions
2. (full) retail :
   transferrable to another device , but more expensive

methodes

kopen

(full : ) home : $ 110 pro : $140
OEM : £69 = 79 €
te kopen aan flinke discount : https://software.pcworld.com/p43717-windows_10_professional
with a new pro license, you can upgrade an existing Windows 10 Home to Professional as wel

upgrade

https://www.zdnet.com/article/going-pro-how-to-upgrade-windows-10-home-without-hassles/ !
you have
- a win home machine [yes : HP minitower]
- is a Pro/Ultimate product key from an older version of Windows. [yes : del laptop , maar was deze retail of OEM ? ]

After you’ve successfully performed a Home-to-Pro upgrade, you can file that product key away. Your upgrade is now a digital license, attached to your unique hardware. If you perform a reinstallation of Windows, Microsoft’s activation servers will recognize the hardware and activate Windows 10 automatically.

transfer