What is wrong with google search engine?

I have been having a problem with searching things on google, yahoo, bing, and everything thing else. I search for what I want the results come up. When I click on a link I am automatically redirected to some site that is all adds. Some examples... show more I have been having a problem with searching things on google, yahoo, bing, and everything thing else. I search for what I want the results come up. When I click on a link I am automatically redirected to some site that is all adds. Some examples are:

http://www.localdouble.com/yb/search.php...
http://63.209.69.107/search/web/Css%20He...

And a bunch of other things. I use Mozilla Firefox on Windows 7. I tried using internet explorer and it does the same thing.
A few days ago I kept getting a User Account Control message saying jucheck.exe with an unknown publisher wanted to make changes to my hard drive. I didn't recognize it and it would repeatedly return until I gave permission. I searched what it was and it seemed to be an update for Windows by was okay to give permission so I did. About a day after I gave permission, this problem began.

I don't know if this would be the reason why I am having this problem. Maybe a virus finally got to year old computer.
Any help at all would be greatly appreciated.
Thanks!
6 answers