Macbook Tries to Boot into Windows - Windows NOT installed!!

System Preferences > System > Startup Disk

That will let you choose/change which partition is used by default when you boot up.

If you didn't use bootcamp assistant to remove the windows partition, and just manually removed it yourself, that could be why you're experiencing this problem.

Try running bootcamp assistant again and see if your windows stuff shows up and if it will let you delete it.

 

At boot, let press Alt/Option and you should have after 20 secs the booting choice menu.

Edit: Nevermind.

 

If you used the bootcamp assistant to remove the partition, then my guess is that during the update of the boot sequence the program couldn't change the settings. That could have been a result of a failed permission.

To test this, use disk utility to repair your disk permissions, then use the bootcamp assistant to make another windows partititon. After it does that, use the assistant to remove the partition. It will attempt to update the boot sequence again and with proper permissions that may fix your problem.

 

did you install windows xp that wasn't at least sp2? i did that and it effed up my osx os.

 

For what it's worth, I just encountered this exact problem, and this solved it. Thanks!

 

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