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This article shows you how to fix fullscreen errors that arise when watching YouTube with Google Chrome. This error can cause part of your browser or desktop to be displayed while in full screen mode, or worse, the feature is turned off. Usually restarting the browser or computer can solve the problem, but if that still doesn’t work, you need to customize some settings to prevent the full screen error from occurring.
Steps
Use basic tips
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Refresh (reload) the page. Sometimes the YouTube page doesn’t load properly, causing graphics errors while viewing. If this is the reason why you are getting the full screen error, press the F5 key or click the “Refresh” button
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to reload the YouTube page and fix the error.
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Try using full screen mode when Chrome is not fully zoomed in. If your Chrome window takes up all of the screen, it can cause part of the desktop to be visible when watching YouTube in full screen mode. You can fix this by clicking the square button in the upper right corner of the window (Windows) or the green button in the upper left corner of the window (Mac) and then trying to use YouTube in full screen mode .
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Use Google Chrome’s full screen mode. If part of your desktop is displayed when YouTube is in full screen mode, press F11 (on Windows) or ⌘ Command + ⇧ Shift + F (on Mac) to set up Google Chrome in full screen mode. This step helps to enlarge the YouTube window to fit the screen.
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Close and reopen Chrome before trying again. Sometimes the full screen error arises because Google Chrome is not loading properly. To fix this, close Chrome, then reopen it and return to the video you’re watching.
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Restart the computer. If the above methods do not work, turn off your computer and then turn it back on to fix the error of viewing YouTube full screen in Google Chrome.
- This will fix the full screen error in most cases. If you have restarted your computer and found that the full screen error persists, try each of the ways below in turn.
Uninstall Theme
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Open 
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Google Chrome. Click or double-click the Chrome app icon in the shape of a red, yellow, green, and blue globe.
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Click . This button is located in the upper-right corner of the Chrome window. A drop-down menu will be displayed.
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Click Settings . This section is in the drop-down menu. This step opens the Settings page.
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Scroll down to the “Appearance” section. This section is near the top of the Settings page, but you may need to scroll down a bit to see it.
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Click Reset to default . This section is usually located to the right of the “Themes” tab. After clicking, all themes (backgrounds) installed in Google Chrome will be removed.
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Try watching YouTube in full screen mode. Go to your YouTube video and click the full screen icon in the bottom right of the play window. If the installed theme is the cause of the video’s full screen feature not working, you can now use the feature.
Turn off extensions
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Understand when to disable extensions. If you notice that the full-screen error occurs right after installing an extension, there’s a good chance that extension is the cause. Disabling (but not Removing) the extension can help fix the problem.
- Chrome updates can also cause some old extensions to become unstable, resulting in potentially strange bugs.
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Open
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Google Chrome. Click or double-click the Chrome app icon that looks like a red, yellow, green, and blue globe.
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Click . You will see this button in the upper right corner of the window. A drop-down menu will appear.
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Select More tops (More tools). This section is in the drop-down menu. Once selected, a menu will appear.
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Click Extensions . This option is in the menu that appears. This step opens the Extensions page.
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Click the blue switch 
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below the extension. The switch will turn white
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, indicating that the extension has been disabled.
- Repeat this step with other necessary extensions before continuing.
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Try using YouTube in full screen mode. After disabling all possible extensions (or disabling all browser extensions), return to your video and click the full screen icon in the lower right corner of the player. If an extension is causing the problem, the player will now go full screen without any errors.
Disable Hardware Acceleration
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Open
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Google Chrome. Click or double-click the Chrome app icon in the shape of a red, yellow, green, and blue globe.
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Click . This button is located in the upper-right corner of the window. A drop-down menu will be displayed.
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Click Settings . This option is in the drop-down menu. The Settings page will be displayed.
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Scroll down and click Advanced . This button is located at the bottom of the page. More options will appear.
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Scroll down to the “System” section. You’ll see this section near the bottom of the page.
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Click the blue switch “Use hardware acceleration when available”
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. This will turn the switch gray
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, indicating that hardware acceleration is now disabled.
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Try watching YouTube in full screen mode. Go back to your video and click the “full screen” icon in the lower right corner of the play window. The video will now be played in full screen mode.
Update or reopen Chrome
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Open
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Google Chrome. Click or double-click the Chrome app icon that looks like a red, yellow, green, and blue globe.
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Click . This button is located in the upper-right corner of the window. A drop-down menu will appear.
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Point to Help . This option is near the bottom of the drop-down menu. You will see another menu.
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Click About Google Chrome (About Google Chrome). This section is in the menu that appears.
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Allow updates to be installed on notification. If Chrome asks you about updating, click Update Google Chrome and wait for the update to be installed. [1] X Research Source
- If Google Chrome is already up to date, skip this step and proceed to the next step.
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Click the Relaunch button when possible. Once the update is installed, you’ll see this button. Once clicked, Chrome will be closed and reopened.
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Try watching YouTube in full screen mode. Go back to your video and click the “full screen” icon in the bottom right of the play window. The video will now be played in full screen mode.
- If your video is still not playing in full screen, try one of the ways below.
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Restore Chrome to default settings. This can fix the full screen error, but also remove the current setting:
- Click ⋮ in the upper right corner.
- Click Settings .
- Scroll down and click Advanced .
- Scroll down and click Restore settings to their original defaults .
- Click Reset settings when prompted.
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Uninstall Google Chrome and then reinstall it. This step helps you force Chrome to update if you know that a new version is available but Chrome refuses to update.
- You can reinstall Chrome by going to https://www.google.com/chrome/, clicking Download Chrome , clicking Accept and Install , double-clicking the file. downloaded installation information, then follow the on-screen instructions.
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This article shows you how to fix fullscreen errors that arise when watching YouTube with Google Chrome. This error can cause part of your browser or desktop to be displayed while in full screen mode, or worse, the feature is turned off. Usually restarting the browser or computer can solve the problem, but if that still doesn’t work, you need to customize some settings to prevent the full screen error from occurring.
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