So I booted up my PC 30 minutes ago and nothing was open, the start menu wouldn't work, and applications wouldn't open. I restarted and then Task Manager worked but still nothing else. Third reboot, Finally able to open chrome, skype just crashes when I start it up, Task Manager says 100% CPU Usage and then it shows no apps are using the cpu. When I go to details there is nothing there at all. None of my start up programs ran. The Sound and Network aren't showing up either. If it helps, when I start up my PC I get a Hard Disk Failure is Imminent error. I backed up my data but it's been working fine. Do I have a virus or does this mean my hard drive failed?