Supposedly it's pretty easy to put Metro-style apps side-by-side using touch gestures in Windows 8. I can't seem to figure out how to do it using just the mouse and keyboard though. My screen is definitely larger than the minimum required resolution. How can I arrange apps side-by-side in the Windows 8 Developer Preview without a touchscreen monitor?
Windows – Is it possible to put Metro-style apps side-by-side in Windows 8 without a touchscreen
modern-uiwindows 8
Best Answer
Move your mouse toward the left edge of the monitor that is displaying a metro style app full screen. Be careful not to cross to another monitor to the left. Wait for a moment until a window thumbnail comes up, then drag the thumbnail until the metro window moves to the right, then release your mouse. You need to position the mouse just barely on the edge of the monitor in order for this to work.
It appears that side-by-side apps will only work if your screen is widescreen (16:10 or 16:9). You can switch windows using this method on 4:3 screens, but you can't use apps side-by-side.