Quick answer: Fullscreen games minimize when you click a second monitor because Windows gives focus to one window at a time and exclusive-fullscreen games minimize when they lose it. The reliable fixes are: (1) run the game in borderless windowed so clicking away no longer minimizes it (at a small performance cost), or (2) give the game its own virtual display so it keeps its screen no matter where you click — which also gives single-monitor users a "second screen" without extra hardware.
It is one of the most-asked, least-answered PC questions: "I game fullscreen on my main monitor and want to use my second monitor without the game minimizing." You click your browser, Discord, or a chart on the other screen — and your game drops to the taskbar. Here is exactly why, and how to stop it.
Why your game minimizes when you click the other monitor
An exclusive-fullscreen game takes direct control of your display and holds the keyboard/mouse focus. Windows only lets one window be focused at a time. So when you click something on your second monitor:
- Focus moves away from the game.
- The game, running exclusive fullscreen, sees it lost focus and minimizes (many games do this by design, to release the display).
- You are now looking at the desktop, not your game.
Sometimes it does not minimize but instead stutters, drops frames or pauses — same root cause: the game was built to expect it owns the foreground.
The fixes, ranked
1. Switch the game to borderless windowed (free, quick, imperfect)
In the game's video settings, choose Borderless Windowed (sometimes "Windowed Fullscreen"). The game now behaves like a regular maximized window, so clicking your second monitor no longer minimizes it.
- Pros: free, instant, works in most modern games.
- Cons: it drops exclusive fullscreen for the desktop compositor, which adds a small FPS and input-latency cost; some games do not offer it; and a few still stutter across two monitors. Competitive players often dislike the latency tax.
2. Give the game its own virtual display (keeps native fullscreen, adds a "second screen")
Instead of windowing the game, run it on a separate virtual display. Windows treats it as a real monitor, so the game keeps true native fullscreen, and because it has its own display, clicking anything elsewhere never takes its screen. This is what Staged does: it runs the game on a virtual display and composites it into a zone on your physical screen, with your other apps in zones around it.
- Pros: native-fullscreen performance (no borderless penalty); the game never minimizes when you click away; and on a single monitor it effectively gives you a second screen — apps live in zones beside the game — with no extra hardware.
- Cons: it is a dedicated tool rather than a built-in Windows toggle.
3. Third-party "prevent minimize" utilities (hit and miss)
Tools that try to stop a window deactivating (e.g. window managers with a "prevent deactivation" option) can help for some titles, but their own developers note it is a Windows limitation that "does not work with all games," and exclusive-fullscreen titles frequently ignore it.
The single-monitor angle: a second screen without a second monitor
Most PC gamers do not have a second monitor. The usual advice — "just buy one" — misses that the real want is often seeing another app beside the game, not owning more glass. Running the game on a virtual display and docking apps in zones around it delivers the second-screen workflow on the one screen you already have — and it works on a laptop, where a second monitor is not an option at all.
Frequently asked questions
Why does my fullscreen game minimize when I click my second monitor?
Because Windows focuses one window at a time and exclusive-fullscreen games minimize when they lose focus. Clicking the second monitor moves focus away, so the game drops. Borderless windowed mode, or running the game on its own virtual display, avoids it.
How do I use a second monitor while gaming without minimizing the game?
Set the game to Borderless Windowed so clicking away does not minimize it, or run the game on a dedicated virtual display so it keeps its own screen no matter where you click. The virtual-display route also preserves native-fullscreen performance.
Does borderless windowed lower FPS?
Slightly, in most cases — it routes the game through the desktop compositor instead of exclusive fullscreen, which adds a small performance and input-latency cost. Running the game on its own virtual display avoids that compositor path.
Can I get a second screen without buying a second monitor?
Yes. A virtual display creates an extra screen in software on your existing monitor, so you can keep apps visible in zones beside the game — no hardware, and it works on a laptop.
Will the game stop pausing when I alt-tab?
On its own virtual display the game does not minimize when you click away, so it keeps running. The exception is a game specifically coded to pause on focus loss — those usually have a "run in background" option you can enable.
Get a second screen without the second monitor
Staged runs your game on a virtual display so it never minimizes when you click away — and gives single-monitor gamers a real second-screen workflow. It is coming to Steam; wishlist it to be first to play.
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