Q: Deleted bootcamp partition, Mac won't boot now.
I decided I no longer wanted the Bootcamp partition I created so, using DiskUtility, I deleted it. I then restarted the computer, selected to install the updates, and the computer froze. I did a hard restart, was treated by the apple logo and the boot bar. The boot bar progressed to 3/4 of the way and the computer shut down. I booted into recovers and ran first aid on the device; everything came back OK. Any ideas?
Posted on Dec 30, 2015 9:19 PM
Deleting the BC partition is unrelated, unless you accidentally deleted a different partition. Progressively, try the following...
1. Try Safe Boot - Try safe mode if your Mac doesn't finish starting up - Apple Support .
2. Run SMC/NVRAM Reset
Resetting the System Management Controller (SMC) on your Mac - Apple Support
How to Reset NVRAM on your Mac - Apple Support
3. Try to boot from the 'grey' disk (First one) that came with your Mac.
4. If you do not have a Grey disk, do you have a second Mac?
5. If you can How to install OS X on an external drive connected to your Mac - Apple Support then you can also boot from this external disk.
Posted on Jan 1, 2016 9:38 AM