# Glitch when trying to enter fullscreen from windowed mode

**URL:** <https://forums.unrealengine.com/t/glitch-when-trying-to-enter-fullscreen-from-windowed-mode/474991>\
**Category:** Community & Industry Discussion\
**Tags:** resolution, unreal-engine, screen, glitch, fullscreen, question, distortion\
**Created:** [November 25, 2020, 9:12pm UTC](https://forums.unrealengine.com/t/glitch-when-trying-to-enter-fullscreen-from-windowed-mode/474991 "2020-11-25T21:12:14Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Tarz333](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tarz333](https://forums.unrealengine.com/u/Tarz333)\
**Post date:** [November 25, 2020, 9:12pm UTC](https://forums.unrealengine.com/t/glitch-when-trying-to-enter-fullscreen-from-windowed-mode/474991/1 "2020-11-25T21:12:14Z")

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Hi, I am a very new to UE4, and I have recently encountered a problem. (Windows 10)

When I try to test my game and use the “Standalone game” play option everything works fine in the windowed part, but when I press F11 to try and go into fullscreen mode, my screen starts to glitch across the entire screen. I have tested this issue on two different screens and computers, and they both show the same issue. I tried to record the issue on my computer, but it did not show the problem, so I recorded it on my Iphone to show the issue. I have tried to see if anyone else has reported the same issue, but I have not seen anything like my problem.

If anyone can help it would be much appreciated.

Vid link: [Glitch UE4 fullscreen - YouTube](https://youtu.be/B3gr6cBgnY4)

I start the video off in windowed mode and at 0:11 mark I press F11 and enter fullscreen mode and the glitch can be seen across the screen in the middle.

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**Author:** ![non\_stop.inc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@non\_stop.inc](https://forums.unrealengine.com/u/non_stop.inc)\
**Post date:** [November 25, 2020, 9:16pm UTC](https://forums.unrealengine.com/t/glitch-when-trying-to-enter-fullscreen-from-windowed-mode/474991/2 "2020-11-25T21:16:01Z")

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if it’s in the engine then okay, but if the same problems arise during compilation, go to Project settings

maybe you turned off something

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**Author:** ![ClockworkOcean](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/clockworkocean/32/1169999_2.png) [@ClockworkOcean](https://forums.unrealengine.com/u/ClockworkOcean)\
**Post date:** [November 25, 2020, 9:28pm UTC](https://forums.unrealengine.com/t/glitch-when-trying-to-enter-fullscreen-from-windowed-mode/474991/3 "2020-11-25T21:28:04Z")

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Turn on vsync.

![323074-screenshot-1.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/0/8/e08613ecd54a1ae7572ccc53190a76a190d94b57.jpeg)

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**Author:** ![Tarz333](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tarz333](https://forums.unrealengine.com/u/Tarz333)\
**Post date:** [November 25, 2020, 9:37pm UTC](https://forums.unrealengine.com/t/glitch-when-trying-to-enter-fullscreen-from-windowed-mode/474991/4 "2020-11-25T21:37:11Z")

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Yep this worked, thank you so much.