chopin, Try running malwarebytes in safe mode.
You might also try the folowing but please note, I have not used this program but it is highly recommended by malware specialists.
This is specifically for removing toolbars and the like.
Download AdwCleaner by Xplode onto your desktop.
http://www.bleepingcomputer.com/download/adwcleaner/dl/125/Close all open programs and internet browsers.
Double click on adwcleaner.exe to run the tool.
Vista/Windows 7/8 users right-click and select Run As Administrator.
Click on the Scan button.
AdwCleaner will begin...be patient as the scan may take some time to complete.
After the scan has finished, click on the Report button...a logfile (AdwCleaner[R0].txt) will open in Notepad for review.
A copy of all logfiles are saved in the C:\AdwCleaner folder which was created when running the tool
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