Using Photos The easiest way to resize photos on Windows 11 is by using the built-in Photos app. You choose the photo to resize, enter the new size, and the resulting image is ready.

ResizeEnable lets you resize non resizable or unresizable windows and dialog boxes with fixed sizes. Download freeware for Windows 11/10.

AltDrag lets you move, drag, resize and manage several separate windows at the same time and move parts of them off the screen easily in Windows.