start up in safe mode with networking (start up your computer and keep tapping f8)
it might pop up in safe mode but don't worry about it.
right click on your task bar and open the task manager
click on the bottom to show all processes
if it does startup, go to the applications tab, right click on the virus, and hit go to process
then right click on the appropriate process, open file location
if you don't see the .exe in that directory, leave it open then open the control panel from the start menu
click on folder options, go to view tab and uncheck hide system files and click show hidden files
hit ok
go back to the folder where the virus should be, click on it and hit F5, scroll down and look for it.
go back to the task manager and end the virus's process.
then go back to the folder and delete the exe in there and any other .exe's with similar naming schemes(its usually random letters and numbers)
then go online and download malwarbytes anti-malware, install and run a full scan.
you should be good.