To open windows that have been painted shut, start by using a utility knife to carefully cut through the paint around the window frame. Gently work the knife into the gap between the window and the frame to break the seal. If the window is still stuck, tap along the edges with a rubber mallet to loosen any remaining paint. Once the paint seal is broken, carefully open the window and clean off any remaining paint residue. If the window is stuck due to other reasons, you may need to consult a professional for assistance.

To open a window painted shut, cut through the paint around the frame with a utility knife and gently work the window open. Use a rubber mallet if necessary to loosen the paint. Clean off any residue and consult a professional if the window remains stuck.