I am currently having Windows XP fully installed in the C-drive of my hard disk. To give a trial on Windows 8, I have downloaded a version of Windows 8 DP and successfully installed in the D-drive of the same hard disk of mine. As I installed Windows 8 DP, I was unable to boot into Windows XP hence using the repair mode, I could luckily boot into XP, but the same problem occurred for Win8 now.
Now I cannot boot into Win8. Please someone tell me how can I boot both the operating systems simultaneously using dual boot. I will be very thankful to be helped.