This problem is annoying the crap out of me!!!

OK...5 days ago, Wings over Vietnam mysteriously disappeared off of my hard drive, and either today, or yesterday, the whole Steam (HL and CS) folder poofed...
I know its still on my hard drive (its really complicated, but I am 99% certain that its still on there), but it won't show...
I'm really afraid that Flight Simulator is next

Is there a way to retrieve them again? or is there a way to stop my hard drive from fuc king me?
Thanks,
Jeff
I know its still on my hard drive (its really complicated, but I am 99% certain that its still on there), but it won't show...
I'm really afraid that Flight Simulator is next


Is there a way to retrieve them again? or is there a way to stop my hard drive from fuc king me?
Thanks,
Jeff