So I'm a geek named Macy, I'm 20 years old, and I'm here because I wanna meet other fellow geeks!

But I also am facing a problem, well my friend is, and I couldn't even fix it.

The situation:
I was just wondering if someone could please help me, well my friend! The situation is that my friend Chelsey's external hard drive won't recognize her laptop anymore after plugging it in her friend's laptop.

She has a Western Digital Terabyte hard drive and both the laptops were good. She told me that her friend was gonna transfer White Chicks (my fave movie) from her laptop to the hard drive which was plugged on Chelsey's laptop. She said that her laptop didn't recognize the hard drive at first then it did, but couldn't transfer White Chicks for some odd reason so they just cancelled it and didn't transfer anything.

After awhile, Chelsey's laptop was being a tard and wouldn't shut down so they tried CTRL + ALT + DEL and end tasks and shut it down. The next day, her hard drive doesn't recognize her laptop anymore and she blames her friend's laptop for it >.> but why does it do that? Chels said that whenever she plugs her hard drive on to her laptop, it doesn't do anything anymore so she thinks it's broken now or something.

Please help! Any suggestions or anything?