I ran into this one, and the flash drive was MBR. But I had an HDD in the machine (that I was not installing to) that was GPT. I couldn't get the install to proceed without physically unhooking that other drive. I've also seen some people say that unplugging the flash drive and then plugging it back in (while the system is booted from it) somehow works; maybe re-mounting it changes the order in which Windows looks for partitions or something.

I'm setting up a brand new Late 2015 iMac 27 5K with a 512GB Flash. It reports: 'We couldn't create a new partition or locate an existing one'. Installer only gives me the option to delete the Mac drive back into a. Can't see any way past this! Do you have any additional USB devices plugged in? [Solved] We couldn't create a new partition or locate an existing one. For more information, see the Setup log files. Yesterday I try to install Windows 8 RTM on.

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Anyway, this error seems to be pretty common. Lots of forum posts, etc. Microsoft really needs to get a handle on the whole installing from flash drive thing. None of my machines even has an optical drive anymore.

I was installing Windows 8 pro through bootcamp on a iMac with new recovery installation. This is my fusion drive before installing windows: However, i got the following error during the installation of Windows 8 pro via Bootcamp, even though I have formatted the Drive 0 Partition 5 in Bootcamp: We couldn't create a new partition or locate an existing one. For more information, see the Setup log files.

So, I have to quit the installation and go back to Mac OS X and delete the Windows partition through Bootcamp: May I ask why windows cannot be installed on that formatted partition? And How to solve this problem? (I just recovered the iMac from a fusion drive issue before the installation recently: ) This is frustrating because I have installed Windows 8 successfully via Bootcamp when I just got the new iMac a while ago. Urgent help and advice are needed!!! Thank you, keg55! I found the following suggestions. And following the advice, i'm able to overcome the issue i posted, and i'm in the process of installing windows 8 pro.

So, the trick here is to: 1. Go back to OS X and open Bootcamp to wipe out the windows partition 2. Turn off iMac 3.

Do a PRAM reset (hold cmd+option+r+p on mac boot, wait for second chime) 4. The rest steps are the same, and up to the step to format the windows partition (drive 0 partition 5) there is no error message this time Thank you very much, Plysovej_Kaktus and vizi0n for the critical suggestions! Hope this can help others who have similar issue. Thank you, keg55!

I found the following suggestions. And following the advice, i'm able to overcome the issue i posted, and i'm in the process of installing windows 8 pro. So, the trick here is to: 1.

Go back to OS X and open Bootcamp to wipe out the windows partition 2. Turn off iMac 3. Do a PRAM reset (hold cmd+option+r+p on mac boot, wait for second chime) 4. The rest steps are the same, and up to the step to format the windows partition (drive 0 partition 5) there is no error message this time Thank you very much, Plysovej_Kaktus and vizi0n for the critical suggestions! Hope this can help others who have similar issue. Apple Footer • This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums.

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