Mystart by Incredibar is a potentially unwanted application which gets installed as an add-on with some other programs like Incredimail. Most of the readers think that it is a virus but it's not. It is a free toolbar like Babylon or Searchqu.
The worse behavior of this toolbars is once it gets installed on the computer, it will affect the browsing experience of the users. This toolbar causes unexpected web browser crashes, takes over search engine and the browser home page as http://mystart.incredibar.com/. It also redirects search results to their own search engine. Hence it is categorized as browser hijackers. That is the reason most of the users are concerned about it.
IncrediBar toolbar can be uninstalled just by going to Control Panel and selecting Add/Remove Programs.
How to remove mystart.incredimail.com from IE:
2. Select Search Providers and remove Mystart Search
How to uninstall mystart.incredimail.com from Google Chrome:
2. Select IncrediBar and remove
How to remove mystart.incredimail.com from Mozilla Firefox:
2. Select Extensions. Remove IncrediBar toolbar. Close the window.
4. Remove MyStart Search from the list . Click OK to save changes.