[ubuntu] Error when trying to use virtualbox!

I tried using virtualbox to emulate windows 7 and it gave me this error.

Failed to open a session for the virtual machine Win 7.
VT-x is disabled in the BIOS. (VERR_VMX_MSR_VMXON_DISABLED).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Console
Interface: IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}



I then gave up! Soon after I thought it was just cuz of the specific OS I was trying to emulate so I downloaded the Anonymous OS
.iso file. I followed a step by step tutorial and i get the same dreaded error!

Failed to open a session for the virtual machine Anonymous.

VT-x is disabled in the BIOS. (VERR_VMX_MSR_VMXON_DISABLED).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Console
Interface: IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}