Deleting partition

[phaley]

So I had windows on my macbook, and decided I no longer needed it. I deleted the hard drive, but every time I reboot I have to hold down the option key. How do I stop this?

[sushi]

Did you use BootCamp to delete the partition and reclaim the space on your HD to make it one partition? If not, you should use it to do this.

As for the start up disk, you should be able to go to System Preferences, then select Startup Disk, then select your Mac OS partition.