Does anyone have an idea why my #Windows 10 VM in #Virtualbox only shows a black screen when booted up (login screen)?

This also happens when I resize the window.

The guest additions are up-to-date, so that should not be the problem. The host is #Debian with #Xfce, but I think this might not be the problem, because it worked from some time and other Windows 10 VMs also work. 

 @996c1dd0 I have intermittent unfixable bugginess with Windows VMs too. In my case one of the VMs stopped doing the dynamic resizing to match the window size. No amount of reinstalling guest additions fixes it. Sometimes I’ve tried toggling through graphics card emulation options and turning on/off the 3D acceleration pass through to get to work again.