We have observed that when attempting to run a VirtualBox image in Oracle VirtualBox, an error appears stating that VirtualBox is not signed with a build certificate ...
There are reported cases where VirtualBox can cause your network config in the VM to become invalid and throw the error message Failed to open/create the internal ...
VirtualBox: Diagnose and fix ‘VT-x/AMD-V hardware acceleration’ errors how-to Sep 8, 2015 2 mins ...