Minecraft won't run in fullscreen mode (Screen Flickering + FPS drop)

Hi Nxro,

Thank you for posting on the forums, I'd be happy to help. Let's start with some of the basics when a game on Windows 10 is not working properly.
First, sign in to your
Microsoft account. Next, work through these possible solutions in the order presented.

• Make sure Windows has the latest update: Select
  check for updates now, and then select Check for updates. Or, select the Start button, then select Settings > Update & Security > Windows
  Update > Check for Updates. If there is an available update, select
  Install now.
• Make sure that your app works with Windows 10. For more info, see Your app doesn't work with Windows 10.
• Update Microsoft Store: Select the Start button, and then from the apps list, select
  Microsoft Store. In Microsoft Store, select See more > Downloads and updates >
  Get updates. If an update for Microsoft Store is available, it will start installing automatically.
• Troubleshoot games: If you're having issues installing a game, see
  Troubleshoot game installations on Windows 10.
• Repair or reset your apps: See Repair or Remove programs in Windows 10.
• Reinstall your apps: In Microsoft Store, select See more >
  My Library. Select the app you want to reinstall, and then select
  Install.
• Run the troubleshooter: Select the Start button, and then select Settings >
  Update & Security > Troubleshoot, and then from the list select Windows Store apps > Run the troubleshooter.

Please go through all of the steps and the referenced links to try and resolve this issue.

Same issue with 30fps cap in fullscreen mode. Game is installed through gamepass/Xbox for PC app and will only give 60 fps running in windowed mode. Maximizing the game window also drops the fps from 60 to 30, no matter the resolution. Any help would be
greatly appreciated.

My problem is with Minecraft. In windowed mode, my FPS is crazy, above 200.

But while in fullscreen (Even windowed full screen), my FPS caps at 60, even with Optifine.

I had to ask here, because this is a problem with Windows 10. I'm running 10 Home 1909, the latest release. That doesn't happen with Minecraft Windows 10. Is Microsoft trying to find a way to pull users to Bedrock?

I would appreciate your help

Hi,

What games are crashing? Some, or all of them?

Games from the Windows Store (or Game Pass) either have Fullscreen Optimization enabled by default or run in Windowed Borderless mode which shouldn't cause games to crash when attempting to ALT+TAB.

You can check whether Fullscreen Optimizations are enabled or not by opening the Xbox Game Bar via Win+G. If you are running in Fullscreen Exclusive, then the display brightness may be flicker. If you are in Fullscreen Optimizations, the Xbox Game Bar should pop up as an overlay.

Sounds more like a graphics driver issue to me.

Windows Apps can not have Fullscreen Optimization disabled as it's not possible to access their exe file to disable them.

but im playing minecraft on pc , im considering contacting minecraft