Have (2) OS -- Need to Boot from Other Drive

[metrov]

I accidentally installed WinXP on two different drives. My machine automatically boots up using my D drive. However, I want the machine to boot on the C drive so that I can delete XP from the D drive.

How do I boot from the C drive when the machine automatically boots from the D drive?

Thanks very much!

 

[metrov]

I found the answer. Thanks anyway.