OS X Partition split and duplicated when creating Boot Camp partition
Hi,
I have installed a larger internal HD 3TB into my iMac Late 2009 21.5 inch. All went well until I used Boot Camp to set up a Windows partition. My intention to have an OS X partition of 2.8TB and a Boot Camp partition of 200 GB. I am running the latest version of Yosemite.
Once the Boot Camp partition completed, and Windows 7 installed successfully, I have rebooted in OS X to find that the HD is now showing as a Partition of 200GB for Boot Camp, a partition of 2TB for Macintosh HD (with all my applications and data etc), and a second Macintosh HD partition of 800GB, also containing all my applications and data etc which appears to have been duplicated. Prior to completing the Boot Camp process, the internal HD was showing correctly as a single partition of 3TB.
I have completed this process twice, with the same result. After the first occasion, I reformatted the new internal HD and started completely from blank again (as I was unable to erase or change the duplicated partition in Disk Utility).
I used Migration Assistant to transfer my files, data etc from the old Internal HD which is now an external HD.
Any thoughts on what I am doing incorrectly?
iMac, OS X Mavericks (10.9.2)