Microsoft has not started releasing 19H2 Builds yet. Skip-Ahead will be for 19H2 Builds when that happens. Fast Ring is 183XX Skip-Ahead is 188XX
Can I extract the installation of sandbox from the installation usb/dvd of windows instead of download it from the internet ?
I tried these: Containers-DisposableClientVM-Package Containers-DisposableClientVM-windows-Package Containers-OptionalFeature-DisposableClientVM-Package Integrated them into a mounted wim, and installed. Icon showed up, but I couldn't get it to start. I could try again some day or you could try.
I don't like integrate files to installation media. I meant to extract sandbox files like net 3.5 framework. If it not possible then to install sandbox from external installation file.