[Ham-Computers] Harddrive question

[Brian K. Gaskamp]

Hello to all, I am wanting to add a bigger harddrive to my desktop computer 
and when I'm done adding it I want to transfer all the data off the old HD 
and onto the new one.

Can someone direct me to a website that would explain how thats actually 
done.
I tried to Google it but didn't know exactly how to word it.

So thats why I'm posting the question here.

Thanks and 73
Brian

KA5BKG