Startup Disk shows only '?'

Something is wrong with the 'Startup Disk' program within System Preferences in my MacBook. Although I have OSX and Windows, it shows only one icon with the word 'network startup' and a question mark. The Startup was set to Windows before, and now I can only access OSX (bootcamp)
with the option key. The problem is, that if I want to boot with the OSX installation disk or Disk Warrier, it doesn't work because startup is set for Windows, and in that case the C and D keys won't work.
Does anyone know how to restore the start-up options? Thanks for any advice!

nerowolfe wrote:
Janet Perry1 wrote:
Something is wrong with the 'Startup Disk' program within System Preferences in my MacBook. Although I have OSX and Windows, it shows only one icon with the word 'network startup' and a question mark. The Startup was set to Windows before, and now I can only access OSX (bootcamp)
with the option key. The problem is, that if I want to boot with the OSX installation disk or Disk Warrier, it doesn't work because startup is set for Windows, and in that case the C and D keys won't work.
Does anyone know how to restore the start-up options? Thanks for any advice!
Boot into OS-X and in System Preferences -> Startup Disk, select OS-X. It's that simple.
You can do the same thing if you are in Windows. It the control panel is the startup disk option. Select OS-X
If I'm understanding right, the OP couldn't see OS X as an option in the startup disk settings, in which case I'm really not sure what he can do, beyond resetting PRAM.

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Startup Disk shows only '?'

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