Snap.do virus HELP!

On my laptop computer ( I am using my desktop) I was happily gaming and browsing the web as usual when suddenly KABAM Snap.do comes up as search browser, Intrigued I searched it up on the browser there it said: DO NOT USE THE BROWSER! So I quickly shut down my laptop
I heard it is VERY malicious And I was wondering what to do; Should I attempt to manually uninstall, have avast update and then scan to kill it, or should I pay a local business? Help would be much appreciated This is the first time avast has let me down normally I am a safe surfer I only download things that many have downloaded I always have avast enabled, I believe this was an attachment to a secure download. I do not know PLEASE HELP!

see if this works…

first run AdwCleaner… then a quick scan with malwarebytes

http://forum.avast.com/index.php?topic=53253.0

post logs here

I do not know what either of those are I do not want to download anything on laptop then I would have to use search browser which is the infection

I would like advice from an expert.

you dont have to know what they are…just follow the removal experts guide

All the recommended downloads are safe, otherwise I would not recommend them. Without the data I can do nothing