Hi, I'm new here. A friend of mine told me to ask here on the forum how to fix the problems that are happening to my computer suddently. It seems that my "Avast anti-virus" wasn't able to do the job. Since 2 days my computer has been infected with several viruses which are quite frustrating. Here are the most obvious ones: #1 First of all my computer doesn’t open properly anymore. It often shows a black screen. I have to switch off my power bar, then my computer before being able to reopen it, otherwise the black screen with the mouse arrow. #2 Unsolicited music is playing in background every 15 minutes or so. It looks like radio tunes ranging from classic rock to Michael Jackson songs. It's very annoying. #3 The bin is always full and when I try to empty it, it says : "Do you want to delete windows?" #4 Google link don’t always open properly and show rather advertisement or sketchy websites. #5 I get a “Kernel_stack_inpage error” when I try to run a program such as Avira AntiVir Control Center or when I try to install a new program such as Malwarebytes' Anti-Malware. I could go on and I'm sure I do have more problems going on. Here is my HijackThis if this might help to fix my problems. I really don't know where to start. I googled most of my problems, but I haven't found any useful way to fix these problems. Thanks a lot in advance for any help!