Disable “These files might be harmful to your computer” on Windows

When you try to transfer files between your computer and a network computer which is accessed by IP address, you will get this warning message:

These files might be harmful to your computer
Your Internet Security settings suggest that one or more 
files may be harmful. Do you want to use it anyway?


You can always click OK to continue the operation, but it will keep asking the message every time.

If you frequently transfer files with this method and the network is trust, you may want to disable the warning message by add these network computers to local intranet zone on your computer.

In this article, I will show how to disable “These files might be harmful to your computer” warning message on Windows.
Note: This method applies to Windows 7/8/10.

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Disable “These files might be harmful to your computer” on Windows

  1. Right-click Windows icon at bottom left and select Run.
    Open Run window
  2. Type inetcpl.cpl and click OK.
    Open Internet Properties
  3. Select Security tab.
    Open Security tab
  4. Select Local intranet and click Sites.
    Open Sites for local intranet zone
  5. Click Advanced.
    Open Advanced menu in local intranet zone
  6. Type IP address of the network computer and click Add. You can also use wildcards instead of manually adding individual IP address. For example, I use this wildcard address, “192.168.0.*” to include all devices on my subnet ( –

    When you finish adding IP address, click Close.
    Add IP addresses to local intranet zone

  7. Click OK and click OK.
    Close Internet Properties window
  8. If you have any opened window to the network folder, you need to close it first.
    Now you can transfer files without seeing the warning message.
    Disable 'These files might be harmful to your computer' message


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