I visited a lot of sites with instructions about how to manually remove the virus. The problem is, they tell me to delete folders which I can't find. For example, telling me to delete a certain WinPC Defender folder from Program Files which isn't there for me.
I've tried the malwarebytes program, and I downloaded the setup program, but when I click it, and hit run, it doesn't do anything.
Also, I've tried doing a system restore. The problem is that when I choose the date, and click Next, it takes me to another screen that prompts me to click next to begin the system restore. However, after I click Next, nothing happens.

Can someone please help with some advice? Thanks.