How to disable the “These files can harm your computer” warning

Windows Security monitors files that are moved to your computer. Especially files originating from the Internet. If you suspect that the files are potentially harmful, you will see the warning “These files may be harmful to your computer.”

[OK]You can click to continue using the file, but it can be annoying if you need to process multiple files or if you get repeated warnings. Fortunately[インターネットのプロパティ]You can access the dialog to disable this warning.

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Why does Windows display the warning “These files can harm your computer”?

You may see this warning when you move files from another computer to a PC on your home network. Or if you want to move files from one storage drive on the same PC to another.

Does this message indicate that the file is potentially malicious? No. This is a simple alert that files from other sources are invading your system, and Windows asks you to confirm the same.

This may not be an issue if you are processing some files from time to time. However, if you try to move a large number of files from one drive to another, it can be tedious to accept warnings for all files.


The solution to this warning depends on the problem you are dealing with. If you are using a network drive, you can add the DNS address to the Intranet zone to disable the warning.

However, if you see security messages when moving files between drives on your computer, you should try multiple solutions to find the right one.

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1. Add the IP address to the Intranet zone via Internet Properties

If this security alert occurs when you access a file from a local network PC or network-attached storage (NAS), you can add the IP address or DNS name associated with the device to the Local Intranet zone. Here’s how.

  1. press Win + R open Run..
  2. type Control Click all right open Control panel.
  3. In the control panel, Network and internet.

  4. Then click Internet settings.

  5. In Internet properties Open a dialog safety tab.
  6. next, Local intranet Click on an option, then site Button Local intranet..

  7. In a new window, click Altitude button.

  8. In Add this website to the zone You need to add the mapped IP address to the field and click addition..For example, if the NAS device is mapped to a local PC using an IP address 198.168.1.71Then this IP address[このWebサイトをゾーンに追加]Fill in the fields and[追加
  9. クリック 近い わかった 変更を保存します。


マップされたIPアドレスをローカルインターネットゾーンに追加すると、Windowsはこのネットワークからの接続を信頼できるものとして扱い、セキュリティ警告の表示を停止します。

2.InternetExplorerをアンインストールします

You may see this security warning when you try to move files within the same drive. Potential fixes for this issue include uninstalling Internet Explorer. Therefore, if you are running Windows 10 or earlier versions of the OS, here’s how to uninstall Internet Explorer to fix the warning:

  1. Press win Key, type Powershell..Then right click Powershell Choose Run as administrator.
  2. In Powershell In the window, type the following command and press come in To execute the command:
    Disable-WindowsOptionalFeature -FeatureName Internet-Explorer-Optional-amd64 –Online
  3. next, Y Check the action.
  4. Running the above command will disable Internet Explorer on your PC.

Restart your PC to apply the changes. After rebooting, move the file to see if the Windows security warning issue has been resolved.

3. Change User Account Control settings

If you can trust the file, set User Account Control Settings (UAC)[通知しない]Can be changed to. This is a temporary measure and is only useful if you want to move most of the files from time to time.

To change User Account Control settings:

  1. press Win + R open Run..
  2. type Control Click all right To open Control panel.
  3. In Control Panel, click Security and maintenance.

  4. Now click Change User Account Control settings Options in the left pane.

  5. In the new window that opens, drag the slider down. Third level.
  6. click all right Save your changes.

Then move the file to see if Windows displays a security warning.If yes, open UAC settings and move the slider to the last level (Please do not notify).

Now you can make changes to your PC without being disturbed by Windows security alerts.

After successfully moving the file, change the UAC settings and set the slider to the second level (only notify when the app tries to make changes to your computer (default)).

Leaving the UAC setting disabled makes your system vulnerable to viruses and other threats.

4. Reset your Windows computer

If uninstalling Internet Explorer does not resolve the issue, or if Internet Explorer is not installed, try resetting Windows. This is a time consuming process as the reset feature of Windows removes all apps and requires a reinstall.

Or try installing Windows 11 without removing the app. If the problem persists, you should perform a clean installation of Windows to fix the problem as a last resort. However, only if the problem is with the operating system, not the file or security settings.

Now you can move files without Windows security alerts

This is a common Windows security alert that occurs for some files. However, frequent warnings can be annoying and may require permanent correction.

Depending on whether you are moving files from a network drive or moving files locally, the solution to stop this security alert will be different. You can also temporarily disable the UAC setting to move files without triggering alerts.

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