If you have a modern double-hung window and the sash is easy to detach, remove it.
Locate the plunger pins on the inside of the screen. Pull the plunger pins inward and release the window screen.Grasp the frame around the screen and push the screen outward. Turn the screen at an angle to fit it through the window.

Are all window screens removable?

The removal process of every window is not the same, so you should keep this in mind. Each window screen comes with a specific removal process, but it is easy to remove and fix back. For interior style, you have to install the window screen into the millwork grooves around the window.