Answer: A pop-up blocker is any program that prohibits a pop-up at some point in time. This may consist of multiple internet windows, or actual pop-ups caused by coding on a webpage. Generally, pop-up blockers are installed to avoid pop-up ads from webpages.
ARCHIVED: How do I enable or disable pop-ups in web browsers?
Explanation: Internet Explorer 9
At the upper right, click the Tools icon, and select Internet options.
Click the Privacy tab.
Check or uncheck Turn on Pop-up Blocker.