The older your Laptop gets the more chances are that it starts breaking up and you need to take maximum care of it because even if you start hitting your Laptop’s keyboard keys hardly they can get broken. Generally keys like Enter, Space Bar, Esc, Shift, Alt & Ctrl are heavily used and the chances of them getting broken are more. Here is a small graphical representation which can give you a idea on how to open the top body of your Laptop and slowly replace the keys and fix it. It can be useful only in emergency purpose and when the Laptop model is totally discontinued and spares not available easily.
Replace Broken Laptop Keys
Replace Broken Laptop Keys
Replace Broken Laptop Keys
Replace Broken Laptop Keys
I had to give my laptop to the company to get the keys replaced, as the netbook had some keys that were damaged to an extent that there was no use of placing them back, and I was less on knowledge of how to open up the panel and replace it with new ones.