Remove tasearch.com Completely - Get Rid of Tasearch

Day ago I did downloaded a video program that supposes to support kind of special video format. But after I did download that program, Chrome search engine change from Google search to "tasearch". I deleted tons of files and program that may cause this problem, but it still there. What can I do?

Basic information about Tasearch

Tasearch.com is an unwanted domain that can be classified as a browser hijacker. This browser hijacker aims to offer the Tasearch search engine. Once the computer is infected with Tasearch, it will modify the browser setting take control of your browser. When you open the browser, Tasearch will  hijack your homepage, search engine and new tab to tasearch.com without user's permission.