Back up these files to your desktop, then delete them from the Windows folders.
is highly optimized, upgrading to Windows 11 can sometimes cause startup crashes or performance stutters. If Snake isn't waking up from his coma on your new OS, 1. Fix Startup Crashes and Launch Issues Metal Gear Solid V The Phantom Pain Fix For Windows 11
How to Fix Metal Gear Solid V: The Phantom Pain Not Launching on Windows 11 Back up these files to your desktop, then
: Right-click on mgsvtpp.exe in your game installation folder. Properties : Go to the Compatibility tab. Settings : Fix Startup Crashes and Launch Issues How to
Beyond security features, Windows 11’s new windowing manager can confuse MGSV ’s exclusive full-screen mode. The game often defaults to a “borderless windowed” state, introducing input lag. The fix is deceptively simple: navigate to the executable’s properties, enable “Disable full-screen optimizations,” and set the high DPI scaling override to “Application.” This forces the legacy Windows 10 presentation model. Furthermore, for users with high-refresh-rate monitors (120Hz+), the game’s cutscenes—locked to 30 or 60 frames—desynchronize. A community-maintained tool, MGSV TPP Fixer , patches the executable to decouple cutscene framerate from gameplay logic, eliminating the jarring judder during cinematic transitions.
If the game launches but performs poorly or crashes mid-session, adjusting how Windows 11 handles the process can help.