A pop-up is a small web browser window that appears on top of the website you're viewing.
Pop-up Blocker is a feature in Internet Explorer that lets you limit or block most pop-ups. You can choose the level of blocking you prefer, from blocking all pop-up windows to allowing the pop-ups that you want to see. When Pop-up Blocker is turned on, the Information bar displays a message saying "Pop-up blocked. To see this pop-up or additional options click here."
Allowing Pop Ups In Internet Explorer: allowing all pop ups
Pop-up Blocker is turned on in Internet Explorer by default. To turn it off or to turn it on again if you've already turned it off, follow these steps: