I am running Windows 10 Pro x64 Version 2004 build 19041.630 on an Intel Core i7 laptop ASUS N552VW. A month or more ago I activated Windows SandBox in the Windows Features dialog and successfully used this native Windows virtual machine inside my OS for testing.
Today, I could not find Windows SandBox in the Start menu to launch it. It magically disappeared though all prerequisites required to launch it are ok (described on the same overview page). I tried to turn this feature off and then on again, but this didn't help. Enabled Hyper-V in my OS in the same Windows Features dialog, but this also didn't help. Does anybody know why Windows SandBox may disappear and how to restore it?