use this DVD with ML on it to provide my windows partition with the needed drivers? Avoid having to buy a new start up disk? Or is that wishful thinking? My dad through out my start up disk -_- (sigh) It appears that for the DVD to boot the "Repair" step is critical and you have to make sure you see the "Updating boot support partitions for the volume as required." message. Older versions of Disk Utility (e.g. from Leopard) don't do this. Thanks for the useful guide! About HighTechDad Michael Sheehan - San Francisco Bay Area - Avid technologist, blogger, social media pundit ( @HighTechDad on Twitter), loving husband and father of 3 beautiful girls. I write about technology, consumer electronics, gadgets, software, hardware, parenting "hacks," and other tips & tricks. I'm a fan of all technology that is new, exciting and valuable. See my About page for more details. Professionally, I'm the Technology Evangelist for GoGrid , the #1 pure-play Cloud Computing Infrastructure hosting provider in the world where I write regularly about Cloud Computing on the GoGrid blog .