When i google something and then click ona link it sends to me an ad website whats causing ths?

You have a virus on your computer. You need to run malwarebytes to search for any trojans or other things of the sort. You may also want to run a program called TDSS killer from kaspersky labs. This is a free rootkit scanner. A very good and free anti virus is microsoft security essentials. It was made by the people who created your operating system, so its runs very smoothly and doesnt cause much, if any, lag. All of these things need to be ran in safe mode with networking on so that you can perform the most effective virus scan. Once that is all done, make sure you are not using any proxies on your browser. In firefox you need to go to options > options > click on advanced tab > click network tab. At the top you should see connection, click the settings button and uncheck the "use proxy" button if it is checked. After that is done, or if you are not using firefox, you need to go to internet options, go to lan settings, and select automatically detect settings, and uncheck and delete any proxy IPs that may be in there. Once this is all done, you should be good to go. This should take you about 4 hours to complete unfortunately so make your time.

It's called Google virus. A trojan that redirects you to advertising sites, it works for money. Use your antivirus in Safe Mode (restart and press F8), do a full scan. If your antivirus won't detect it, download Malwarebytes Antimalware and try again.

You have Google redirect maleware running on your computer - Delete all temp files and cookies, download and install Microsoft Security Essentials and run this to remove it properly and stop it coming back.

see here for solve your problem:http://www.ribbun.com/profile-link-building.php

Scan your PC with Anti Adware.. Maybe it is causing due an adware.