最近刚把操作系统换成了64位的Win7，安装了最新的vmware workstation7.0，在安装64位的虚拟机系统的时候，vmware出现了如下提示：

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?

好像是BIOS里的vt-x设置没有打开，于是重启进到bios里，设置好了开关，启动vmware 还是报同样的错误！

重启进BIOS，设置明明保存在那里，怎么会不生效呢？既然要用最新的firmware，我就冒险升级了一下，还是不管用！

google了一下，原来这里还有个绝招：

1.进入BIOS，关闭vt-x
2.保存并退出BIOS设置，在系统启动并出现bios信息后，暂停系统的启动（通过pause键）
3.关闭计算机电源
4.重新开启计算机
5.进入BIOS，开启vt-x
6.保存并推出BIOS设置，在系统启动并出现bios提示信息后，暂停系统的启动（通过pause键）
7.关闭计算机电源
8.重新开启计算机