Hello, I recently had my first experience with a virus. It started suddenly when I was watching YouTube in fullscreen and was unable to move the mouse our escape fullscreen. I decided to reboot the computer and when it came back online I was unable to open any applications. At this point I had suspicion that this was a virus so I followed a couple of guides for malware removal with little success while in safe mode. Eventually I came across a particular guide that seemed to be getting somewhere in terms of detecting and removing the virus. When I was nearing the end of the guide, one of the programs calling for a reboot, I rebooted to discover I can't connect to the internet. I use a desktop with windows 7 and a usb Wi-Fi adapter, and I'm not sure where to go from here. I've searched for cases similar and experimented but nothing seems to work. I'm a high school student and this computer is my lifeline, so any help would be greatly appreciated,thank you.