Remove Processes from Task Manager
Press Ctrl Shift Esc to open Task Manager. See in the list of the processes and
select the process that you want to delete and press the End Process button.

It will prompt you, say yes, and then close the Task Manager. There may be more processes belonging to this malicious software.

For Advanced Users : If you use a free software called "Zenturi program checker"  You may be able to see the location of a process in the task manager on the hard disk, and from the list of malicious files, differentiate the harmful processes from useful processes.