You've got spyware!
Get the latest updates for your spyware/adware software and run it. That should clean up the problem. If you don't have any spyware/adware removal tools, I recommend Ad-Aware and Spybot - Search & Destroy
Death is life's special way of telling you you're fired.
For I do not seek to understand in order to believe, but I believe in order to understand. For I believe this: unless I believe, I will not understand. - Anselm of Canterbury (1033–1109)
* The Best Reasons to Target Windows 8
Learn some of the best reasons why you should seriously consider bringing your Android mobile development expertise to bear on the Windows 8 platform.