Hi, I'm mostly a windows guy and never need to get this deep in Macs. I'm trying to fix a MacBook Air with a Win 7 Bootcamp. I'm having troubles with the bootmanager. When I boot to a Win 7 DART disk, I can look at Windows Disk Manager and there are 4 partitions, 1 is bootcamp, 3 are "unhealthy". One of the unhealthy I'm guessing is the MacOS partition. I know in Windows machines we need a small "system" partition for boot files but I don't see one. I suspect one of the unhealthy ones is it and someone did something in MacOS to screw that up. Any suggestions?