7805u - Won't boot into vista

I installed a second wd scorpio 320gb black harddrive. I wanted to use a usb serial adapter cable that vista64 would not support. Decided to install xp pro on the second harddrive. Now I can't get into Vista.

I've right clicked my computer and gone to the advanced tab, only xp shows in the boot screen. I've also hit f10 at boot up and selected the primary drive to boot from and it says OS not found after showing the Marvell network connection. Not sure what to do.

I was planning on running raid0 anyway, but not wanting to reinstall right now.

 

XP overwrites the Vista boot sector. If you have a Vista disk or the "recovery disks" from Gateway you can run the Vista installer and pick the repair options and repair the boot sector with the Vista disk. Alternatively I think ALT-F10 at boot will boot the recovery from the recovery partition on the original drive. When Vista fixes the boot sector it should automatically add an entry for XP as well so you can boot either one.

 

I tried the recovery disc but it didn't give me an option to repair, only install factory defaults.

After booting with the recovery disc it now will not even let me boot xp.

I don't have a vista disc, how can I get one? I tried going to gateway's website but it makes you register to ask a question. I plan on selling the laptop and would rather let the next owner register. Is there any other way of getting the oem disc?

 

Ok, I got a hold of a vista 64bit disk and repaired it, but now I can't get it to boot into xp pro. How do other people dual boot?

 

get a hold of easybcd edit and add your windows XP install location to the vista bootloader is usually the easiest way. If vista shows up as C XP will most likely be on D in easybcd