Q: the disk appear to have been partitioned by another utility and cannot be erased
I have a MBP with 2 SSD's. Yosemite is running on the 1TB SSD which has been partitioned to a 150 / 850Gb volumes.
I wanted to install Windows 10 using Boot Camp but after succesfully downloading Windows support software I can't proceed in the next step where I have to choose a volume (Pluto). Boot Camp Assistant shows my SSD and when I chose that the following warning appears:
"the disk appear to have been partitioned by another utility and cannot be erased"
I see that Pluto doesn't have GUID and this may be the problem but there are allready some data on the 850 Gb volume that I don't want to erase. Is there a way to fix this without destroying the data? I don't even know why Pluto does not have GUID in the first place..
Thnx,
G
MacBook Pro, OS X Yosemite (10.10.4), Late 2011-500GB+1TB SSD's-16 Gb RAM
Posted on Dec 11, 2015 3:30 PM
