Q: Doing a recovery without the main display

No I have a Windows Computer. But I have managed to start up the computer. I can go in to Mac OS now. Still I want it reinstalled. I made my external display the main Display from the System Preferences but still it's going in to that Grey screen. Is there a software I can use from Mac OS to initiate the reinstalling process or is there anything I can do to get this computer to factory state?

I can access the mac without any issues. I can work on the mac with the external monitor and yes I can acess it from a Windows Computer using TeamViewer. I just want to do a reinstallation on the Mac.

I think I can. When I do a restart, it should boot up in to that but I wanted to make sure when it does, it will show the things on the external display for me to carry on the reinstalltion. Will that be possible?

I got another mac in my office. Guess I'm gonna have to do it myself and see whats gonna happen. Thanks.

I tested it out with the MacBook I had in my office and when I boot the computer in to Recovery mode, the dialog boxes are actually in the computer screen, not in the external monitor eventhough I set it as primary. I can see the background of the recovery mode screen in the other display so the only thing I can do was try to click on the dialog box that is in the computer screen which I can't see and drag it in to the external sceen. It's kind of like fishing. That is actually almost impossible to do so I resolved my issue by creating a new profile and deleting the existing one. I just wanted to post what I did here 'cause this might be usefull to someone in the future. Thanks.