Microsoft ended support for Windows 7 in January 2020, and Internet Explorer is largely deprecated. This guide works for legacy systems, but for security and better ad blocking, switching to a modern browser (Firefox, Chrome, or Edge) on a supported OS is strongly recommended. Guide: Adblock for Internet Explorer (Windows 7) Method 1: Using a Tracking Protection List (Built-in method, no extra software) Internet Explorer has a feature called Tracking Protection that can block ad domains.