Separation of causes when screen sharing can not be performed in zoom app

The screen sharing may not be possible when the CPU of the PC is heavily loaded or when the network bandwidth is tight.

Please divide it in the following way.

Investigation of cause

Check if the CPU of the PC is heavily loaded

  1. Start Task Manager and check PC performance.
    場合 If the performance of the PC is poor, please improve.
  2. If you can not start Task Manager, your PC’s performance may be poor.
    Please share the screen with another PC.
  3. If screen sharing can be performed on other PCs but screen sharing can not be performed on a specific PC, the CPU of the PC may be overloaded.

Check the CPU usage status and close unnecessary applications.

If the cause is not the CPU of the PC, there may be a problem with the network.

Use the following method to check if there is a problem with the network.

Check if it is a network problem

I will try to share the content by changing the line.

  1. If you are using Wi-Fi, please connect to the LAN.
    ⇒If you can connect to the LAN and share the screen, there was a problem with Wi-Fi.
  2. If it does not improve even if you connect to LAN, please restart your PC.
    ⇒ Network connection needs to be rebuilt.

If you change the line and can share the screen, it is assumed that the line status is the cause.

If you can not share the screen even if you change the line, please contact the IT department.


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Frequently Asked Questions


Why will Zoom not letting me Share Screen?

Zoom desktop client must be signed out and re-signed in. It is also possible to close and reopen the client. Then, click the Settings button next to your profile picture. Ensure that Show Zoom windows during screen sharing is enabled in the Share Screen tab and then click on the Share Screen button.

How do I enable screen sharing on Zoom app?

Click on the Settings button. Go to the Meeting tab and click on it. If you want to enable or disable screen sharing in In Meeting (Basic), click the toggle switch next to Screen Sharing.

How do I enable screen sharing on Zoom if host is disabled?

Please click on the tab labeled “Meeting”. Under In Meeting (Basic), make sure that Disable desktop screen sharing for meetings that you host is enabled under Disable desktop screen sharing. Please click the toggle to enable the setting if it is disabled at the moment. A verification dialog box may appear if the change needs to be verified. To verify the change, click the Turn On button.

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How do I fix screen sharing on Zoom?

Test whether the problem has been resolved at the end of each step.

  1. Make sure you have a good Internet connection. In order to be able to share your screen effectively, you need to have a strong internet connection in order to do so.

  2. Make sure that your mic and camera have been granted access to them.

  3. The camera should not be accessed by other apps.

  4. You might want to try deleting and reinstalling the Zoom app in order to fix this issue.

Why can’t I share my screen on Zoom Android?

A green Share button will appear on the bottom of your Android phone when you are in a Zoom meeting. There will be a list of options available to you when you tap that. The screen contents of your phone can be shared by scrolling down and selecting Screen from the menu.

Why is my screen black on Zoom?

In some cases, a black screen might occur when a graphics card with automatic graphics switching is used (such as an Nvidia card) during screen sharing. You can access the Nvidia Control Panel through the Windows Control Panel by clicking on the Nvidia icon.

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