If the frame was pulled out for preliminary work, then it is easier to paint before installation, the window box is also easier to paint when there is no frame in it. Fixers and handles must be removed in any case. So that the paint does not fall on the glass, it is previously glued with a camouflage ribbon, it is removed only after the paint dries. If the paint still hit, and this happens quite often, then after drying it is removed with a scraper, which is specially designed for this.
