yeah some of the people seemed to know what's up..try to reboot in safe mode if possible and as soon as you get on, go to internet and download a program called RKill to your desktop, run this program and it quickly finds the malware and closes all of its resources / processes. once this is done, download the program MalwareBytes - it is freeware and you can trust it, just get it right off the website..both these are easy to find from legit sources. Do a full scan with MWBYTES and then quarantine/delete the files that it finds infected (it will do this for you). Once this is done, reboot computer and hope this solves the problem. If this doesn't solve the problem, there could possibly be some changed register errors, but usually MWBYTES will find these and correct these for you..
hope this helps! :)