Optimizations for windowed games in Windows 11: on or off?
Short answer
UpdatedWindows 11 can move borderless and windowed DirectX 10 and 11 games to the newer flip presentation model, which fullscreen games and DirectX 12 already use. That removes a copy of each frame through the desktop compositor. This tweak turns the setting on (Settings, System, Display, Graphics).
What it does
Windows 11 can move borderless and windowed DirectX 10 and 11 games to the newer flip presentation model, which fullscreen games and DirectX 12 already use. That removes a copy of each frame through the desktop compositor. This tweak turns the setting on (Settings, System, Display, Graphics).
In the app the switch is called "Optimize Windowed Games", described there as: Lets Windows 11 show borderless and windowed DirectX 10 and 11 games the way it shows fullscreen ones, with less delay.
When it helps, and when it hurts
When it helps
- DirectX 10 and 11 games in borderless or windowed mode: lower delay, and features such as variable refresh rate and Auto HDR start working there.
When it hurts
- A few older games show flicker, wrong overlays or broken capture with it. For those, turn it off per game in the Graphics settings.
- It does nothing for DirectX 12 and Vulkan games, or for exclusive fullscreen.
What it writes
Exactly what the switch changes, read from the app's source. Switching it off is what the app writes when you turn the tweak off again.
This tweak has no fixed list of registry values to print here: it works through a driver's own settings, scheduled tasks or values that differ from PC to PC (per device, per adapter or per installed game). The app reads what your PC has and changes only that.
How to undo it
In the app: Yes
Switching it off puts the Windows graphics setting back exactly as it was.
Switch the tweak off in Frozen Tweaks.
Changing several settings at once? The app's Make a restore point button, on every plan, makes a Windows restore point before you start.
Verdict
On is the right default on Windows 11. Turn it off only for a game that misbehaves.
Questions
- Is "Optimize Windowed Games" safe to switch on?
- On is the right default on Windows 11. Turn it off only for a game that misbehaves. The main cost: A few older games show flicker, wrong overlays or broken capture with it. For those, turn it off per game in the Graphics settings.
- How do I undo it?
- Switch the tweak off in Frozen Tweaks. Switching it off puts the Windows graphics setting back exactly as it was.
- Is "Optimize Windowed Games" free in Frozen Tweaks?
- Yes. It is one of the free tweaks, with no time limit.
In the app
- Switch
- Optimize Windowed Games
- Category
- GPU
- Plan
- Free
- Undo
- Yes
Related guides
- Windows 11 Gaming Optimization: What Still Works in 2026An honest audit of Windows 11 gaming tweaks: which settings still measurably help in 2026, which are placebo, and which quietly cost you security.8 min read
- How to Reduce Input Lag on PC: The Whole Latency ChainInput lag is nine separate delays stacked together. Here is each one, roughly how long it lasts, and which of them are actually worth fixing on a gaming PC.8 min read
More tweak explainers
- High performance GPU for gamesOn a PC with two graphics chips, Windows chooses one per program. What the tweak changes, when it helps, when it hurts and how to undo it.2 min read
- Hardware-accelerated GPU schedulingHAGS on or off: what HwSchMode 2 and 1 write to the registry, when Hardware-Accelerated GPU Scheduling helps frame times, when it hurts, and how to undo it.2 min read
- MSI modeWhat MSISupported does, why message-signalled interrupts reduce DPC latency, and why this is one of the few registry tweaks that still genuinely matters.2 min read
Written by
Frost LIVEFounder of Frozen Tweaks, based in Hamburg, Germany. Publishes settings guides for competitive games on his YouTube channel, Frost LIVE.
In the app
- Category
- GPU
- Plan
- Free
- Undo
- Yes
Frozen Tweaks
Free for Windows 10 and 11
58 tweaks free, each with an undo switch. Never edits game files.
v2.0.0 · 6.4 MB · Windows 10 and 11, 64-bit · free account, no payment details
Or type frozentweaks.com on your PC.
The free Windows app for competitive games.
58 tweaks free, each with an undo switch. Never edits game files.
v2.0.0 · 6.4 MB · Windows 10 and 11, 64-bit · free account, no payment details
Frozen Tweaks runs on Windows. Send the link to your PC and download it there.
Or type frozentweaks.com on your PC.