id summary reporter owner description type status component version resolution keywords cc guest host 8995 Can't run existing VM on new Sandy Bridge computer. Scott Budge "I just upgraded my computer to a i5-2500k (Sandy Bridge) processor in an MSI P67A-G45 motherboard. I experienced two different problems. First, the 32-bit WinXP VM I was running previously without problems will hang after it boots when it reaches the login screen. Second, when I tried to install a Windows 7 VM (64-bit) I get a message that ""VT-x/AMD-V hardware has been enabled, but is not operational."" The 64-bit Windows 7 will not install, even though VT-x is set in the BIOS on the motherboard." defect closed installer VirtualBox 4.0.8 duplicate VT-x, Sandy Bridge Windows Solaris