How do you make a screen smaller?

if you mean to make more stuff fit go to page then zoom then zoom out or you can do ctrl - but it may be so small you cant read it

You click the 2 squares button next to the exit or x button.

Go to the desktop, and right click an open area (where there is no icon). In the menu that pops up, click properties. In the 'settings' tab, there is a slider, under 'Screen Resolution'. Adjust that...

press the button with the 2 squares, or on a mac, press the green button. Also you can use the bottom right corner of the screen and drag it

I'll assume you're referring to you screen resolution? So to change your screen resolution, go to your control panel and find the section involving appearance and personalization. Then, go to screen...