This simple AutoHotkey script will remove the Windows titlebar from any program or game running in windowed mode under Windows 10+. This is perfect for games (such as Microsoft Flight Simulator 2000 or Combat Flight Simulator 2) that don't render properly (or suffer from poor framerate) when run in fullscreen mode under Windows 10+, yet function well when run in a fullscreen window.
This AutoHotkey script doesn't suffer from some of the performance issues that DDrawCompat (or any other Direct3D or DirectDraw "wrapper") may introduce when attempting to accomplish the same thing.
After running the program or game and putting it in fullscreen windowed mode, press the left Windows key and the left mouse button simultaneously to remove the Windows titlebar. Press the left Windows key and the right mouse button simultaneously to display the Windows titlebar.
Note that if you run a program or game as an administrator, or have any of the various Windows compatibility modes enabled, you will need to execute this AutoHotkey script as an administrator for it to function when running the program or game.
This AutoHotkey script doesn't suffer from some of the performance issues that DDrawCompat (or any other Direct3D or DirectDraw "wrapper") may introduce when attempting to accomplish the same thing.
After running the program or game and putting it in fullscreen windowed mode, press the left Windows key and the left mouse button simultaneously to remove the Windows titlebar. Press the left Windows key and the right mouse button simultaneously to display the Windows titlebar.
Note that if you run a program or game as an administrator, or have any of the various Windows compatibility modes enabled, you will need to execute this AutoHotkey script as an administrator for it to function when running the program or game.
