This will depend on if you play on transferring Windows and your programs or just your personal files. If you want to upgrade your hard drive as your primary drive with Windows and your programs then you can clone your old drive onto your new one. There are many programs available that can do this. Otherwise you will have to reinstall Windows and all of your programs that you installed on your computer since you bought it.
If you are just replacing a non system drive with another larger non system drive then you can copy your data to a recordable CD or DVD if you have a or you can use a USB flash drive or hard drive and copy your files that way.