Right click on the icon and you’ll get a menu like this. It can be located on your Start Menu, or your desktop. Locate the PaintTool SAI icon with which you launch it on your computer. HOW TO FIND WHERE PAINTTOOL SAI IS INSTALLED ON YOUR COMPUTER My approach is to explain how SAI works instead. The easiest way to install new brushes and textures in SAI is to understand how it works. I’ve personally found that tutorials or step-by-step guides are more confusing rather than helpful.