Yes, my Hyper-V build 11099 virtual machines were automatically activated as always having no issues.
Originally Posted by jimbo45
I did not upgrade but instead grabbed the ESD file to make an ISO image both on UK and US English Build 11082 activated virtual machines, then did a clean install on both virtual machines with the respective language version of Build 11099 ISO.
Both were activated as soon as I entered the desktop.
This must not be de facto how digital entitlement activation in Hyper-V virtual machines works but it is what I have experienced in my quite extensive test installs:
If you use Diskpart, Windows setup partitioning tools or any third party method to wipe / empty the vhd, removing the previous activated build and then perform a clean install with a new build, the digital entitlement will be lost and Windows 10 will not be automatically activated. To activate it you need to enter the product key.
However, if you do a clean install without wiping the vhd but keeping nothing, letting setup to move old activated installation to Windows.old folder, the new clean installed build will be automatically activated. You can then use Disk Cleanup tool to remove the Windows.old folder.