MS is very aggressive with this in their Windows 10 development VM images you can download. Theyre free, but they only last 3 months. There doesnt appear to be anyway to activate - even if you have a legit license key through my.visualstudio.com.

The VM prebuilt with VStudio, Visual Studio Code, WSL w/ Ubuntu and other goodies in a prebuilt image is attractive and a time saver. But, it's immediately on a kill switch timer of about 3 months, if you download while new. Current image expires in Feb 2020.

I was using this to connect to work in a VPN in an effort to keep work and personal separate, but I'll have to burn a Win10 license key from my subscription for a new VM.

Caveat: the expiration doesnt render the image entirely worthless, but it will only stay up for around 90 mins before shutting down without warning.