How do I stop an app from using the internet in Windows?

How do I block an app from accessing the internet?

From the desktop: Control Panel > Internet Options > Connections > Lan Settings.

Click Advanced. Click Protocol > LAN Settings. Click TCP/IP. Click the Options button. Uncheck the "Use a proxy server for your network connections" box. Click OK. From the phone: Home > Settings > Network & Internet > Proxy Settings. Under Use a proxy server for your network connections, click Add. Enter the proxy address into the address field and the port number into the port field. When you are done, tap the Update Now button. You can verify that you have successfully added a proxy server by verifying the checkbox next to Use a proxy server for your network connections in the list of proxy servers. What do I use the proxy address for? In most cases, you'll just want to enter the web address of the app or web page you want to block. You'll then need to get that address. For example, if you want to block Facebook, you could enter into the address field, and the port number would be automatically adjusted. For those times when you need to get the web address of an app or web page, see How do I find an app's or site's internet address?

What if the server has more than one IP address? If the server has more than one IP address, the proxy address must be entered for each address. For example, if the proxy is at 192.168.0.12, the proxy address would be The default port number for most apps is 80; if you want to block only that specific address, you must enter into the port number field.

For iOS users, an alternative to entering a proxy address is to use the OpenDNS free app or website instead. (Note that this does not block access to other sites.) You can use it to create lists of blocked websites and then apply those lists when you're in certain locations, such as public Wi-Fi networks. See How do I add a domain name to the OpenDNS iOS app?

How do I use a VPN? A VPN service is a program that runs on your computer, smartphone, or tablet.

How to restrict access to a program in Windows 10?

I'm looking for something like the Linux "su" functionality: How to restrict access to a program in Linux?

In Windows I would install my own process with administrator rights and then I could restrict that program. Is it even possible? How is this done in the Windows OS? There is no way to restrict the ability to launch programs in the way you wish. There are ways to detect where the program is being executed from, including an API call (see Enumerate processes in C# and Get current executable path and GetModuleFileName for example), but there's no way to restrict it. So basically the answer is no, you cannot.

How do I stop an app from using the internet in Windows?

I have a laptop that I purchased with the operating system preinstalled.

My work requires that I have access to the internet while in the office and while out of the office, so I can check my work email etc. Since I am always connected to the internet through my work desktop, I do not want to accidentally make any changes to my laptop that would make this not the case.

Is there any way to just stop any apps from using the internet if they try to and how? This website is licensed under a Creative Commons Attribution 3.0 License. The images and content here we take no ownership of them unless otherwise stated or you are credited for them. We have the right to show them to you as long as they are followed by "fair use" definitions.

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No need to sign up to use this site if you dont want to That's really the point of why you wouldn't want any of your apps to connect to the web. Even if your computer is on and you click on a link, that opens an HTTP connection.

Daren ThomasAug 5 '13 at 7:03. I'm not sure I understand - when my computers go into standby or sleep mode, will it still wake up to take my email (if I use an email client)? I use Thunderbird to manage my email. Is there any way I can stop it from accessing the internet if it's in standby or sleep mode? RafaelAug 5 '13 at 11:16. Rafael, when it goes to sleep or standby your wireless connection isn't disconnected but still goes into sleep mode. Your ethernet connection probably won't. This is the default behavior for these computers. Your computer sends a message saying it needs to shut down.