i just put a hard drive i found in my room into this hp probook 6440b. that laptop was used so hard so i took it apart and threw it somewhere in my room. i recently decided i wanted to revive it, but the screen is busted up on the laptop and i cant see anything on it. i got it to boot, i am using my pc's external keyboard and mouse but i cant use the external monitor, so i cant see whats going on which means i cant install windows.. what can i do??