The previous day i installed windows 7 using Boot Camp provided by the mac mini ( mountain lion OSX ) .The process was complete and the system was working pretty well .The windows partition was working fine in my mac mini. Using Disk management in windows I attempted to partition my primary disk further. May be it created a dynamic partition and after i rebooted it did not show OS X option at startup. Further it reported the windows OS as corrupted. Windows starts to boot but it does not completetly boot. Instead it shows a repair screen which does not help at all. Earlier on booting and pressing ALT key, the system showed three patitions, OS X, Winows and Recovery 10.8.2 but now only the Windows partition is visible (which does not boot). Please help ASAP.