Can someone PLEASE help me. I tried your steps but I can't get passed running Malwarebytes. I am assuming it's malware causing my problems and I can't do anything to scan and remove it. I had Malwarebytes installed but when I downloaded a file malware took over and it removed my Malwarebytes and when I try to reinstall it says "The Requested Source is in Use". I renamed the file like you said but still nothing. I have downloaded several virus/malware programs but it tells me the same thing when trying to install them. It won't let me go into safe mode and it won't let me open my task manager. It did let me run Windows Defender and it found a couple of threats but after removing them whatever is causing the problem is still there! Symantec used to have a virus scan that was 100% online but now you have to download a file and it won't let me run it!! Someone please tell me how to fix it. I'm desperate as I use my computer for my work.