Won't boot after updating Options

[LearningCurve]

My netbook told me I had 65 updates, so I waited for the updates to finish, ran a few errands, came back and woke up my netbook, and then hit restart. It hasn't been able to boot up since. I manually turned off my computer because it was a black screen. My computer is trying to run a safety check to start up, but it hasn't been successfully moving along for about 15 minutes. Any help is appreciated!! This is the first time my netbook has acted up. It's a two-year old Asus and I take excellent care of it.