Many legitimate advertisers on the Internet use windows that pop up in the middle of your screen to display a message. They might also open when you click a link or button on a Web site, and they might open either over or under the window you wish to view. Some pop-ups are helpful. For example, if you click an image to see a larger version, it might open in a pop-up window. Unfortunately, some pop-up windows can contain inappropriate content or can be a way for you to accidentally download dangerous software (called spyware or adware) onto your computer.
With Windows XP Service Pack 2 (SP2) Internet Explorer and others add-on products allows you to prevent most pop-up windows from appearing over pages you want to view while you're using the Internet.
For Internet explorer :
Going to menu bar of Internet Explorer > Tools >
Pop-up Blocker > if it shows "Turn Off Pop-up Blocker", please click it and then it will change to "Turn on Pop-up Blocker".
In opposite, if it shows "Turn on Pop-up Blocker", do nothing.
Or Pop-up Manager > take the tick out in front of "Block Pop-up Windows"
If there are no both "Pop-up Blocker" and "Pop-up Manager", please check whether MSN, Yahoo, and Google toolbars are downloaded on your computer by observing toolbars on the webpage.-->
For Yahoo toolbar : Going to Menu "Start" > Setting > Control Panel >
removing "Yahoo Companion, Yahoo Customization, Yahoo Internet Mail" and if it is removed successfully, message box of Yahoo Messenger Explorer Bar was removed successfully will be shown.-->
For Google toolbar : Normally this toolbar is found on the right side of "Address".
Clicking "Google toolbar" > Option > take the tick out of the box of "Popup Blocker" > OK > refresh
For MSN toolbar : Monitoring whether there is the tick in the box of "Popup Blocked".
If yes, please take the tick out and the icon will be changed from "Popup Blocked" to " Allow Pop-ups" > refresh
