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How to Block VNC

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Last Updated: June 29, 2021

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VNC enables you to remotely access and control your devices from internal and external networks. It's very helpful when you want to remotely administer a computer. However, there are a few times when you would like to prevent somebody from accessing your computer and/or monitor what you are doing. Luckily, you can block VNC.

Method 1

Method 1 of 4:

Using the local computer firewall. (Windows)

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Click on Next.
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Then enter the ports used by your VNC. Default is 5900 and 5800.
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Hit Next all the way to the end of the wizard.

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Method 2

Method 2 of 4:

Disable VNC Service

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{"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/6d\/Block-VNC-Step-8.jpg\/v4-460px-Block-VNC-Step-8.jpg","bigUrl":"\/images\/thumb\/6\/6d\/Block-VNC-Step-8.jpg\/aid5193585-v4-711px-Block-VNC-Step-8.jpg","smallWidth":460,"smallHeight":362,"bigWidth":711,"bigHeight":560,"licensing":"<div class=\"mw-parser-output\"><p>License: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/0e\/Block-VNC-Step-9.jpg\/v4-460px-Block-VNC-Step-9.jpg","bigUrl":"\/images\/thumb\/0\/0e\/Block-VNC-Step-9.jpg\/aid5193585-v4-728px-Block-VNC-Step-9.jpg","smallWidth":460,"smallHeight":346,"bigWidth":728,"bigHeight":548,"licensing":"<div class=\"mw-parser-output\"><p>License: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}

You may also select Disable service.

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Method 3

Method 3 of 4:

Uninstall Completely

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{"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/ae\/Block-VNC-Step-11.jpg\/v4-460px-Block-VNC-Step-11.jpg","bigUrl":"\/images\/thumb\/a\/ae\/Block-VNC-Step-11.jpg\/aid5193585-v4-702px-Block-VNC-Step-11.jpg","smallWidth":460,"smallHeight":367,"bigWidth":702,"bigHeight":560,"licensing":"<div class=\"mw-parser-output\"><p>License: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}

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Method 4

Method 4 of 4:

Disconnect from the Network

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Go to Control Panel > Network Settings > Right click on your connection > Disable.

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About This Article

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, volunteer authors worked to edit and improve it over time. This article has been viewed 63,639 times.

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Co-authors: 7

Updated: June 29, 2021

Views: 63,639

Categories: Featured Articles | Remote Access Services | Network Security

Thanks to all authors for creating a page that has been read 63,639 times.

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