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I had windows xp in one partition of my hdd and I decided to install vista in another partition of the same drive.Vista didn't gave me a 2nd option after installing them and I run EasyBCD to inform Windows Boot Manager that there is an xp operating system in drive d: (vista are in drive c:).
Indeed I was presented with a second boot option but that 2nd option doesnt work.I get the message :

Windows Boot Manager

Windows Failed to start

A recent hardware or software change might be the cause

...blah blah blah

I'll post here the EasyBCD 'View Settings' Display Mode (detailed) :

my philips dvd rom drive isnt showing up on my computer and this is what it says on device manager: Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39) i need to get this sorted out asap as my windows vista is saying my copy isnt genuine when it is! ive contacted microsoft and they said i need to perform a new clean install but i cant do that until this dvd drive works! someone help me! thanks in advance