MBP thinks it still has a Win partition


macrumors 6502
Original poster
Jul 3, 2006
Recently I installed a new hard drive in my MBP and divided it into two partitions - Win 7 and OSX with Win 7 being the default boot partition. I changed my mind and reinstalled my old drive. Now when I turn it on I get a "no boot drive" Windows error unless I press the option key and then press enter on my OSX option (the only option). I assume somewhere in my MBP it still thinks I have OSX and Win 7. Can someone tell me what I need to reset to clear it?

Thanks in advance


macrumors 65816
Mar 24, 2010
When you boot into OS X, open System Preferences, go to Startup Disk, and select on the Mac partition. It should work.