Virtualbox: Ubuntu doesnt start up

I get the below error when trying to start up my Ubuntu instance on VB in my Windows 10 env.

VMMR0_DO_NEM_INIT_VM failed: VERR_NEM_MISSING_KERNEL_API_2 (VERR_NEM_MISSING_KERNEL_API_2). VT-x is not available (VERR_VMX_NO_VMX).

Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

From googling, ive turned off Virtualisation in my laptop but still get this error, any tips?