id summary reporter owner description type status component version resolution keywords cc guest host 6533 Export appliance between CPU's supporting VT-x - settings cannot be changed will "I exported a virtual machine as an appliance. From: Vista 64 bit Q6600 cpu (with intel vt-x) To: Ubuntu 64bit Q8200 cpu (without intel vt-x) On the Ubuntu, it gave me a ""no vt-x"" error. Looking into the configuration files for the machine, it still had CPU count = ""2"" and ""enabled"" on the hardware virtualization settings even though the Q8200 doesn't support it. The problem was that on the Virtualbox, there were no options to disable the hardware acceleration options (it wasn't visible probably because it wasn't an option on that CPU type) - but it was enabled internally in the config files. After modifying the .xml file, it worked fine! " defect closed OVF VirtualBox 3.1.6 obsolete appliance, hardware other other