Any way to disable the startgui/backpack?

Hi I wanted to know if you could disable the startergui and/or the backpack, but you are still able to equip an item. Can you help?

Inside a localscript in the backpack or in the starterGUi If you want to know more about the starterGui you can go on Roblox wiki here

game.StarterGui:SetCoreGuiEnabled(Enum.CoreGuiType.All, false) --Set All CoreGui to false

If you want to set a coreGui false but not all you can go here for see wich coreGui you can disabled And if you want to know wich CoreGui is enable, you can try this code:

game.StarterGui:GetCoreGuiEnabled("PlayerList") -- false if you do the other code else true