I want to install different version of Windows on a PC.
- I installed Windows XP on a first harddrive.
- I add a harddrive (HD) on my PC, split it in three part
- Since I have only one SATA cable, I unplugged the first HD to plug the DVD drive.
- I installed a working version of Windows Seven on the first partition of the second HD.
I plugged back the two HDs but I have no dual boot screen on startup : Windows XP boots automatically.
Additional information: Both system are installed on the same C: drive letter since there is no option during Windows 7 installation processus.
bootrec /RebuildBcd
as detailed here.