bios virturalization tecnologly

bilgisayarıma vmware kurmak istiyorum ama 

This virtual machine is configured for 64-bit guest operating systems.

However, 64-bit operation is not possible.

This host supports Intel VT-x is disabled.

Intel VT-x might be disabled if it has been disabled in the BIOS/firmware

settings or the host has not been power-cycled since changing this settind.

(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. 

diye bi hata veriyor bios'umda  virturalization tecnology diye bi ayar yok.Bu durumda ne yapmam gerekiyor.