I can't find my render anywhere. Now matter what folder I choose, when I go to that folder I don't find my render. And the only option left is to screenshot and crop or something. Please help. Blender version: 2.79
Blender sticks rendered images in
/tmp on Mac and probably Linux. (I don't know about Windows.) It'll be called something like
You can save your rendered image somewhere by pressing F3 (Fn+F3 on a laptop) instead of trying to dig for it. This also lets you conveniently name it.