本机安装的是WIN 7 ，详细版本是：Windows 7 Ultimate, 32-bit 6.1.7601, Service Pack 1 。虚拟机版本:7.1.2 build-301548.在虚拟机上安装RED HAT ENTERPRISE LINUX 6 64版本时，报如下错误：
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 ?id=152.
Continue without 64-bit support?
This kernel requires an x86-64 CPU, but only detected an i686 CPU.Unable to boot - please use a kernel appropriate for your CPU.
Virtualization选项，进去后把Inter(R) Virtualization Technology选项设置为Enable后，退出重启电脑，即可顺利安装RED HAT ENTERPRISE LINUX 6 64位操作系统