How to Remove a Proxy in Windows
A proxy server functions as an intermediary between a Web browser and the Internet. Once it is setup on the browser, any request made to access a Web page must first go through the proxy server. One way proxy servers are commonly used, is to provide a secure Internet connection in a business environment. If you no longer need a proxy server to access the Internet, you can remove it from your Windows computer by configuring the settings in the "Internet Options" utility, or directly removing it from your browser settings.
Launch Internet Explorer. Click "Tools" from the menu bar, then select "Internet Options" from the drop-down list. The Internet Options window will open.
Click the "Connections" tab, then click the "LAN Settings" button in the "Local Area Network (LAN) Settings" section. The Local Area Network (LAN) settings dialog window will open.
Clear the check box next to "Use a proxy server for your LAN," then click "OK." Click the "OK" button on the Internet Properties window.
Launch the Firefox Web browser. Click "Tools" from the menu bar, then select "Options" from the drop-down list. The Options window will open.
Click the "Advanced" icon, then select the "Network" tab and click the "Settings" button. The Connection Settings dialog window will open.
Click the check box next to "Direct Connection to the Internet" or "No Proxy" then click the "OK" button to close the window. Click the "OK" button on the Options window to close it.