Just recently, out of boredom, I ran a virus scan using Windows Defender Security. After a full scan, it detected a trojan in my computer (it wss called trojan win 64) and then I deleted the detected trojan right afterwards. Soon enough, I decided to try install the Free Version of Malwarebytes. When I tried to install Malwarebytes, it is unable to and states the error message, "Invalid path". I did another scan with Windows Defender Security and it says there are no viruses in my computer. I have a feeling that it's wrong and there is probably some virus in it. I am unable to find any solutions at previous forum threads and would like some help please.