How to enable a hard drive on windows 7

[sms9758]

I removed my hard drive from my laptop and put it into an enclosure to put into my pc but it continues to tell me it is disabled and can not be enabled. I am a novice at this so go easy on me. Thanks in advance.

 

[sms9758]

It wasn't dropped but it came up after I restarted with needs boot up disc and I couldn't get it to work so I thought maybe something else was wrong with the laptop. Is there any way to retrieve what was on the hard drive?