在win7 64bit上安装CentOS6.5 64bit的虚拟机报错：
You have configured this virtual machine to use a 64-bit guest operating system. However, 64-bit operation is not possible. This host is VT-capable, but VT is disabled.
This is usually because VT has been disabled in the BIOS/firmware settings or the host has not been power-cycled since changing this setting. Please:
(1) Verify that the BIOS/firmware settings enable VT and disable ‘trusted execution.’
(2) Power-cycle the host, if either of these BIOS/firmware settings have been changed.
(3) Power-cycle the host, if you have not done so since installing VMware Workstation.
(4) Update the host’s BIOS/firmware to the latest version.
For more detailed information, see http://vmware.com/info?id=152.
Continue without 64-bit support?