Virus in the browser's homepage

Dear,

how do I remove this link of my browsers (Mozilla, Chrome, Explorer)?
Whenever I go on any browser, the first thing that appears is this disgrace.

http://login.latinaminternet.com/search.php?q=

Can anyone help me get rid of it?
Avast Premium did not work …

Please make the link not clickable.
We do not want people to visit malicious websites.

Next follow these instructions:
https://forum.avast.com/index.php?topic=53253.0