Is this a virus???

[VeTeRen ThoR]

hey everyone everytime i click on a youtube video my browser opens another link which goes each time to the same website and that website is a threat cuz avast keeps popping up with "threat detected" also recently there was another threat i guesse cause avast said the threat came from C:/...googlechrome and stuff and now all my shortcut websites like youtube and tomshardware isint there anymore??? how can i get rid of this threat? also any idea how i can remove pop ups?

 

[Epic Sasa]

get a popupblocker or adblocker or just reinstall the browser

 

[blobbyblarker]

Get an adblocker https://chrome.google.com/webstore/detail/adblock/gighmmpiobklfepjocnamgkkbiglidom

 

[rgd1101]

scan with these 2
http://www.malwarebytes.org/var2-robot/
http://www.bleepingcomputer.com/download/adwcleaner/

 

[VeTeRen ThoR]

scan with these 2
http://www.malwarebytes.org/var2-robot/
http://www.bleepingcomputer.com/download/adwcleaner/

how good is malwarebytes in virus removing againts avast?

 

[Dashing_star]

Without paid version avast some time not good (my experience)
Download Microsoft security essentials from here..
http://windows.microsoft.com/en-us/windows/security-essentials-download