A pop-up blocker refers to any software that disables any pop-up, pop-over or pop-under window that you would see while using a web browser. Many people will never want to disable popup blockers because they don’t want to see those annoying windows and advertisements but let me tell you that not all popups contain advertisements. Some websites require from you to enable popup windows to be able to login, register or fill certain forms on their websites. Also there are many of you that are not aware of that there are hidden popup blockers in your browser, toolbar or even Windows. This tutorial will show you how to disable popup blockers in some most popular browsers, toolbars and Windows 7.