I install the application using the .deb, but I can't get a virtual machine to boot. How to install it correctly from the beginning?

Opening my newly-created XP machine yields this message:

```
Failed to open a session for the virtual machine Windows ******* ****s.

VT-x features locked or unavailable in MSR. (VERR_VMX_MSR_LOCKED_OR_DISABLED).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Console
Interface: IConsole {db7ab4ca-2a3f-4183-9243-c1208da92392}

```