How to Block VNC

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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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  1. Step 1 Open Windows Firewall with Advance Security.
  2. Step 2 Click on Inbound Rules.
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  3. Step 3 Click on New Rule.
  4. Step 4 Under Rule Type, select Ports.
    Click on Next.
  5. Step 5 Select TCP.
    Then enter the ports used by your VNC. Default is 5900 and 5800.
  6. Step 6 Select Block Connection.
    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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  1. Step 1 Open Services.MSC.
  2. Step 2 Look for VNC Server and hit Properties.
  3. Step 3 Stop the service.
    You may also select Disable service.
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Method 3
Method 3 of 4:

Uninstall Completely

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  1. Step 1 Go to Control Panel > Program and Features.
  2. Step 2 Uninstall the VNC program..
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Method 4
Method 4 of 4:

Disconnect from the Network

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  1. Step 1 Unplug your network cable physically from the computer.
  2. Step 2 Disable NIC.
    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 64,277 times.
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Co-authors: 7
Updated: June 29, 2021
Views: 64,277
Categories: Featured Articles | Remote Access Services | Network Security
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