Error while installing docker toolbox on windows 10

I Downloaded docker toolbox and separately installed Virtualbox 6.1.6. When I try to run Docker Quickstart Terminal , I get the error :

Starting "default"...
(default) Check network to re-create if needed...
(default) Windows might ask for the permission to configure a dhcp server. Sometimes, such confirmation window is minimized in the taskbar.
Unable to start the VM: C:\Program Files\Oracle\VirtualBox\VBoxManage.exe startvm default --type headless failed:
VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole

Details: 00:00:02.963122 Power up failed (vrc=VERR_VMX_MSR_ALL_VMX_DISABLED, rc=E_FAIL (0X80004005))
Looks like something went wrong in step ´Checking status on default´... Press any key to continue...

Please help me to resolve this .