The startup disk cannot be partitioned or restored to a single partition.

I understand there are several topics just like this, but I've tried plenty of methods to no avail, and was wondering if I could get help. I deleted Windows off the partition though not out of Bootcamp, which I hear is the main cause of the error, and now I have two partitions and cannot merge them.


I'm own El Capitan if that makes any difference.

iMac

Posted on Mar 15, 2016 10:36 PM

Reply
2 replies

Mar 17, 2016 4:46 PM in response to Nikul.Patel

The simplest and safest method to get your disk corrected is to


1. Backup OSX and all your files - Use Time Machine to back up or restore your Mac - Apple Support .

2. Boot into Internet Recovery (Command+Opt+R) - OS X: About OS X Recovery - Apple Support .

3. Click on Utilties -> Disk Utility and Erase your internal whole disk.

4. Restore OSX and your files - Use Time Machine to back up or restore your Mac - Apple Support .


This requires a separate external disk which can accommodate TM backup - Backup disks you can use with Time Machine - Apple Support .

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The startup disk cannot be partitioned or restored to a single partition.

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