id summary reporter owner description type status component version resolution keywords cc guest host 4053 GUI: Don't enable VT-x/AMD-V by default if unsupported by the host CPU nanonyme Only socket AM2 versions of AMD64/AMD64 X2 actually have CPU virtualization. I have a socket 939 version and it has none. The virtual machine shows VT-x/AMD-V to be enabled and I can't find any way to disable it since the option is greyed out in the virtual machine configuration. (possibly because I don't actually have it) defect closed GUI VirtualBox 2.2.2 obsolete Windows Linux