|by clicking on it you have probably embedded it into your regsitry....read this:|
1- rkill.exe to stop the process
2- tdss killer to remove any unwanted rooykits if found
Then run Malwarebytes, update it then run a full scan mode removing all it finds.
If malwarebytes won't remove it, you can try Trjan Remoer and Hitman pro and fix all they find.
Some HELP in posting on Computing.net plus free progs and instructions Cheers