Auto Booting? How to choose which drive to auto boot from?

[Theturk]

Was installing windows, got an error mid way. Anyways I worked through it and removed it and everything. But now, whenever i turn my MBP on it doens't boot from anywhere and tells me no drive to boot from. So what I do is restart again holding ALT and choosing my MAC drive to boot from and it works.

So how do i reset the auto boot options to my Mac drive? Thank you.

 

[HLdan]

In System Preferences choose Startup Disk. Then highlight the volume you want your Mac to auto boot to. For instance, if you want Windows to be the default boot then highlight that one. You need only do this once and this can be also done in Windows in the Control Panel. You don't need to do it on both OS's.