You ll need it to replace your current license key.
Windows 10 pro digital license key.
If using a windows 7 or 8 key works for activation a digital license will be issued to you.
You can t use a pro license to activate a device running.
With digital license there is no need to know your product key or purchase.
A 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.
For example if you re uninstalling a windows 10 pro product key you can only use it to activate another windows 10 pro installation.
Depending on how you got your copy of windows 10 you ll need either a 25 character product key or a digital license to activate it.
The windows 7 or windows 8 genuine license your system was previously running is exchanged for a diagnostics key.
Now instead of buying this code separately from different sites people prefer to get the digital license of windows 10 pro for free.
Upgrade from windows 10 home to pro via a license key digital license.
Windows 10 activation is quite smart maintaining the license key if you change your graphics card ram or hard drive but asking you to re authenticate if you change the motherboard or in some.