How To Disable the System Proxy in Windows

This guide shows how to disable the system proxy on the Windows operating system by using the LAN settings dialog in the Windows Control Panel.

So what's a proxy? A web proxy is a piece of software that works as an intermediate between a web browser and the server where the page that the web browser requests is stored. A web proxy can be used for tons of useful things, but some web proxies insert unwanted advertising into the page that the web browser requests. If that's the case, you may see advertising on web pages that under normal circumstances are completely free from ads. While trying to find the cause of unwanted ads, it can be useful to temporarily disable the system proxy and check if that stopped the advertising in your browser.

Please note that some computers should have a web proxy configured and disabling it could the make the web browser unable to load web pages. So, please make sure you know how to enable the system proxy again if that is needed.

These instructions works for Microsoft Windows 10/8/7/Vista/2008/2003/XP/2000.

  1. Press Windows + R on your keyboard. The Run dialog will pop up.

    Press the Windows button and R to launch the Run dialog.

  2. Then, type control inetcpl.cpl,,4 in the Run dialog and hit Enter or press the OK button. The Internet Properties dialog will pop up.

    Type in control inetcpl.cpl,,4 in the Run dialog

  3. Click the Lan settings button in the Internet Properties dialog

    Click the Lan settings button

  4. Deselect the Use a proxy server for your LAN check box

    Deselect the 'Use a proxy server for your LAN' check box

    (As you can see here, my lab machine was configured to use a web proxy. That proxy injected banner ads on the top of each page loaded by the browser)

  5. Click the OK button in the LAN settings dialog, as shown above

  6. Click the OK button in the Internet Properties dialog

    Click the OK button

  7. Restart your computer

  8. Now that you have disabled the system proxy, verify if that stopped the ads from appearing in your browser

Did you find a web proxy on your computer? Did you disable the proxy and did that stop the unwanted ads? Thank you!

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