i could really use a close to for sure answer for this. basically what i'm asking is can i unhook as in take apart or whatever just disconnect the screen. will i be able to connect an external monitor and see the boot loading startup screen ect.
Yes, you could use an external monitor for your main, but you need to disable the laptop screen, the laptop will only see the external if you close the lid and you set the "close lid" in windows to do nothing. That way the laptop will recognize the external as the main.