LePlane

Hi. I'm very new to all of this. I bought a couple of arcade joysticks and downloaded GameEx and now I'm trying to figure out how to install emulators and roms. The problem I'm running into is that at every turn wether it's downloading an emulator, my McAfee goes crazy and tells me I'm downloading dangerous content. My computer is already showing signs of adware since I started this. Is there not a safe place to download or buy clean software? I just wanted to relive some of my old games with my kids but can't seem to do that without all the internet scams hitting my machine. I'm about to just give up on the whole thing.