Vista boot issues

[mrjack]

I just got Vista as a birthday present and I installed it so that I now have XP and Vista. Had some trouble but got it working without any issues. Then I had to restart because I had just installed sound card drivers and it continued to work. Then when I turned it off and started it up again I didn't get the dual boot screen I did before. It just booted up into XP directly. I tried booting up to Vista by using the DVD but that will just start the installation for some reason.

Long story short, how can I boot up Vista from a CD/DVD/floppy/USB memory? And how can I get back the dual boot screen.

I have the OS's on different harddrives, and when I choose to boot from the one with Vista first it just states something about NVIDIA Boot Loader, or manager or whatever it's supposed to be.

 

[cbilljones]

my suggestion, though its kinda to late now, i always unplug my other harddrives when installing a OS, then the MBR will be were i want it and you can just pull up the boot menu direct from the MOBO, usually F1 or F8

 

[mrjack]

I just reinstalled Vista since the repair function couldn't fix the boot up problem and it worked great... for a while. I rebooted a few times without any problems, but I noticed that there was no OS selection boot screen and then one time when I was rebooting it started XP instead.