Dual Operating Systems

Have two HDD (80G & 20G), and currently run XPsp2 on 80G HDD.
Can I install Win Media Center on the 20G, and how do I do this?
And how do I get PC to give me option to boot using alternative OS?

 

Not sure about win media centre but assume it would setup the same as XP.

Boot with the win media CD inserted. Hit a key when asked.Follow the screens. When your drives are detected you will see them.

Set up win media on the drive you want. When it is all finished you will have both operating systems to choose from when booting up.

 

Just boot to your CD and tell it were to install. Once its installed you should see both listed when it boots up and it will ask you to select an OS. If none is selected after 30 seconds it will pick the first on the list. After that just go to properties of My Computer -> Advanced Tab and click settings under Start up and Recovery. Under System Startup select what you want to be the default OS and you can change the time for it to select the default.