MyStartSearch is a browser hijacker on Microsoft Windows.
The main problem with MyStartSearch.com is that this browser hijacker might look like a genuine search provider, and some users may not even realize they are infected. However, one of the best ways to determine whether something is wrong or not, is to check for commercial advertisements and various pop-ups. The presence of an adware application you are not familiar with is the first sign that something might not be right. Hence, if you see a lot of pop-ups and other types of advertisements on your search results page, check whether your default search engine is MyStartSearch.com or not.