How to install a laptop hard drive to my desktop

[crankshaft]

I have an old laptop that I will trash however, can it be used on my desktop as an additional hard drive, internal or external storeage? I am using windows 7 with all the latest updates and etc.

 

[Chicano]

Yes it can be used in either way:

Internally with a 2.5 to 3.5 Hard Drive Bay Adapter.
This one is for IDE hard drives but you can find them for SATA as well.
http://www.amazon.com/Drive-Adapter-Convert-Laptop-Desktop/dp/B000YTR53W

External with a USB 2.5 USB Hard Drive Adapter:
http://www.amazon.com/s/ref=nb_sb_noss/175-9009996-7830053?url=search-alias%3Delectronics&field-keywords=USB%202.5%20hard%20drive%20adapter

2.5" to 3.5" internal hard disk mounting bracket
http://www.amazon.com/s/ref=sr_nr_n_0?rh=n%3A172282%2Cn%3A160354011%2Ck%3AUSB+2.5+hard+drive+adapter&keywords=USB+2.5+hard+drive+adapter&ie=UTF8&qid=1388815433&rnid=493964