how to remove gnoosi.net browser hijack virus?

how to remove toppagefinder.com browser hijack virus?
toppagefinder.com is an advertising server that delivers pop-up ads, banners, and redirects to computer users web browser. It has network of advertisers that requires Internet traffic in order to promote products and online services over the web. Since toppagefinder.com is the most economical way marketing campaign these days, it is being utilized by almost all new products.
For more help at: http://goo.gl/65OhsK
http://youtu.be/gpCr7sNhGx0