boot - How to Startup Windows 8.1 without laptop screen [Only using external monitor]

I am using Windows 8.1. I do not use my laptop’s screen cause it is broken, so I use a monitor instead. So what happened was,

• I ran to “msconfig”,


• and went to the “boot” tab,


• then I checked “safe boot” in the boot options,


• and then restarted my PC.

Like I said I don’t have a screen, and the monitor doesn’t display any boot screens, so I am just stuck with a blank screen. I do not know what to click or type. Later I regretted checking “safe boot”. I just want my PC to startup normally without any of this safe mode stuff. Please help.