Always run Steam as Administrator. Right-click the Steam icon -> Properties -> Compatibility -> Check "Run this program as an administrator". Do the same for the GameMakerStudio.exe (or the equivalent executable found in the PGMMV installation folder).
If the built-in full-screen option crashes your engine, you can force the software to run in a borderless window that fills your monitor. Right-click in your Steam Library. Select Properties , then navigate to the General tab. Locate the Launch Options text box. Type -popupwindow into the box and close the window. Launch the game and press Alt + Enter to toggle the view. Adjust Windows DPI Scaling pixel game maker mv not working full
Download the (both x86 and x64 versions) from Microsoft. Restart your computer after installation finishes. Part 2: Fixing Full-Screen Display Issues Always run Steam as Administrator
: Occasionally, multiple monitor setups cause launch crashes. Unplug secondary monitors, launch the program, then reconnect them. Disable Conflicting Services If the built-in full-screen option crashes your engine,
PGMMV isn’t broken forever. In 90% of cases, the DPI scaling override (Step 2) or fixing the Display vs Game Size (Step 3) solves the “not working full” problem.
If you updated PGMMV, old plugins may break. Sometimes, simply opening the plugin manager, clicking on a plugin, and refreshing the parameters resolves this, as suggested in plugin setup guides (Source: 1.2.2) .
1.0 – Initial draft for community troubleshooting.