How to turn on / off Fullscreen Optimizations for apps and games in Windows 10

Windows 10 introduced a new feature called Fullscreen Optimizations that is enabled by default. Fullscreen Optimizations can result in better gaming and application performance when they run in full screen mode. However, some people have reported that Fullscreen Optimizations does not always improve gaming and application performance.

This guide will show the different ways to enable and disable Fullscreen Optimizations for applications and games in Windows 10.

Enable / Disable Fullscreen Optimizations for the current user's specific application in Compatibility settings

The registry settings for this are stored as DISABLEDXMAXIMIZEDWINDOWEDMODE string values for each user application currently in:

HKEY_CURRENT_USERSoftwareMicrosoftWindows NTCurrentVersionAppCompatFlagsLayers

1. Right-click or hold and hold the .exe file or the shortcut of the desired application (desktop) and click Properties.

2. Click the Compatibility tab , select or deselect (default) Disable fullscreen optimizations , depending on what you want and click OK.

Enable / Disable Fullscreen Optimizations for specific apps, applicable to all users in Compatibility settings

The registry settings for this are stored as DISABLEDXMAXIMIZEDWINDOWEDMODE string values for each application of all users at:

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionAppCompatFlagsLayers

1. Right-click or hold and hold the .exe file or the shortcut of the desired application (desktop) and click Properties.

2. Click the Compatibility tab and click the Change settings for all users button .

3. Select or deselect (default) Disable fullscreen optimizations , depending on what you want and click OK.

4. Click OK.