How do I start this in windowed mode?

[Empress Lina]

I have 4 monitors and playing @5760x1080 so I have lots of games ♥♥♥♥♥♥♥ up my computer and I have to do ♥♥♥♥ like unplug one monitor to fix my computer since the screen turns black and no matter what I do I have to unplug 1 monitor or physically restart it.

So how do I put this in windowed mode?

http://prntscr.com/3v8z99
this does abosolutely nothing.

[Antr4cite]

alt+enter

or use a source port like zdoom, for example.

[[AU] Tabris:DarkPeace]

Easy way that uses a Source Port:
- Get: http://sourceforge.net/projects/dooms-19-winx64/

- Run Doom once with this and answer YES to replacing GlBoom.Cfg when prompted.
- Quit Doom using the F10 key.

- Click [Open Folder] and then open the PrBoom\glboom.cfg file and set use_fullscreen to 0 then save it.
- "use_fullscreen 1" is the default, and it's under the "# Video settings" section of the glboom.cfg file.

Then use the button to Launch Doom and it will run in windowed mode with WASD keys if desired.