need help doing a command for vbox

[heineken65]

so i open command prompt and change the directory to my vbox directory and i need to do this command
VBoxManage setextradata VM-name "VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled" 1

i change "VM-name" to my vms name and when i press enter this happens

htt ps://gyazo.co m/de274e4a34e875f9c372289b87362eff
(cant post link to image cuz i made my acc like right now)

please help because i wanna turn off time syncing and if i do it in the virtual machines folder vboxmanage wouldnt work

[mpack]

s
htt ps://gyazo.co m/de274e4a34e875f9c372289b87362eff
(cant post link to image cuz i made my acc like right now)

We don't need links to the image. Attach the image directly to a message, after trimming it to below 128KB. The newness of your account doesn't stop you attaching files directly.

You don't mention the host OS. If it's Windows then you need to type the complete path to VBoxManage. Or you can use the batch file I wrote about a couple of years back: Windows Hosts: Run VBoxManage without having to type the program path.