I had some sort of virus for a while that took over my McAfee program and wouldn't allow me to turn scanning on. Having no antivirus protection I acquired some viruses, I assume and yesterday my computer crashed. I restarted it multiple times and I couldn't open up any program without the computer completely freezing and internet explorer opening random websites. I decided to restore my computer to factory settings today and installed the free trial of avast premier. It was working fine until I started to re download my games on steam which were downloading incredibly slow. Avast has its own firewall so I thought I should turn windows firewall off. When I tried to do this it said McAfee was controlling windows firewall. When I tried to delete McAfee nothing would happen. I guess my dell computer came preloaded with McAfee. Could McAfee be interfering with avasts firewall causing the slow download rate on steam? Any help will be greatly appreciated as I have no idea what to do.