Uninstall snap.do from control panel

uninstall snap.do from control panel 
Remove SnapDo browser hijacker (Removal Guide)

Snapdo by Resoft (also searched for as Snap.do) is a questionable search engine and title of a potentially unwanted program (PUP) in the browser hijacker category of computer threats. Unwanted programs used to promote snap.do including the Snapdo program for Windows often install without user consent and change your existing internet browser settings such as the homepage and default search engine. This causes internet browsers to start-upon and redirect to search.snap.do, snapdo.com, and other webpages when you open a new browser window, open a new browser tab, or search the web using the browser address bar. botcrawl 

steps:

1.Access Windows Start Menu and navigate to the Control Panel (on Windows 8, right click the bottom left corner to access the Windows 8 Start Menu).

2. Click Uninstall a program or Add and remove a program.

3. In the list of installed programs search for Snap.do or other program used to promote the search engine. Once the program is located, double click it or select the program in the list and click the Uninstall button to begin the uninstall process.

Source:botcrawl