Try this. You've installed Malware bytes, update that. Also try Super Anti Spyware, and update that. Install an antivirus program such as Avira if you don't have one already. After updating all those programs, backup any files, disable system restore, then reboot into safe mode, be sure Super Antispyware is updated, and run that also in safe mode. If you are not doing a full format and reinstall, sometimes malware can hide out in your restore points, which is why you disable it to delete those copies, then after you have cleaned the machine, re-enable it. Let us know if this helps out or not.