close all the windows and the applications during the installation and during the analyse.
Download here:
http://www.malwarebytes.org/mbam.php Install (choose your langage ; do not modify the parameters of install) and update it.
close any current applications!
Launch Malwarebyte's.
Make a complete scan
Let the program work ( make nothing other with the computer during the scan).
at the end you click "result".
Verify that all the infected objects are validated, then click " deletion".
Note :
If it is necessary to start again your computer to finish the cleaning, make!
Post the report after the deletion of the infected objects (in the tab "report / log" of Malwarebytes, the last one dates)