4 Replies Latest reply: Jan 10, 2014 4:11 PM by Kajmac
nickyboy997 Level 1 (0 points)

Have a long winded story here so read through at your own pace.


I have a Mid 2011 iMac 27. Im currently running 10.9 mavericks and at first I could run run the Boot Camp assistant because it would not allow me to create a windows installation. I am using an ISO file (legal). After searching the fourms and a few Terminal commands later I got boot camp to allow me to create an installation USB drive. I first created the drive with my Windows 7 ISO. After my computer restarts it tells me that there is no bootable disk and to press any key to reboot. Searched the forums again and came across the suggestions to user rEFIt to allow me to choose my boot drive. This help very little and still got an error that the boot drive is not readable. I reformatted my internal drive and created the partition again, this time with a Windows 8.1 ISO. I got slightly further with this one. I was able to load the installer and input my CD Key. After it asked me to format the BOOTCAMP partition I cam across an error that stated the drive is partitioned as MBR (Master Boot Record) and that it is not compatible. At this point I was extremely frustrated. Restarted into my Mac OS and the drive was partitioned correctly as NTFS.


At that point I decieded maybe Its just not the right thing to do. I installed VirtualBox and ran the Windows 7 iso with no issue. The installation took maybe 20 mins and I was done.



I spent 5 hours trying to determine the issue with bootcamp. I went to a third party freeware and my issue was resolved in 20 mins. Has anyone had issues with bootcamp simply not reading ISO files when its time to install Windows?


Any suggestions would help.


Thank you!

iMac, OS X Mavericks (10.9), Mid 2011 27in 3.4 i7
  • mistteam Level 1 (15 points)

    I had this same problem with my old early 2008 Macbook Pro; even if you use terminal to get boot camp to put the .iso onto a USB drive, it'll still refuse to get the installation going if you have a Mac with an internal optical drive. I couldn't use mine because it was broken; if yours works, burn the .iso to a DVD with Disk Utility, and then you should have no problems. I tried all the workarounds and never got it going, unfortunately.

  • Number88 Level 3 (750 points)

    Is this a 32 bit or 64 bit iso of Windows 7 and are you using Boot Camp 5?

  • nickyboy997 Level 1 (0 points)

    This is a 64bit ISO with boot camp 5

  • Kajmac Level 1 (0 points)

    Hi i have same problem i cannot install win7 via a bootbale usb. When i want to boot from the usb it cames up "there is no bootable disk and to press any key to reboot".


    And i dont want to run it from VM becouse it lower the performance. Are you running win 7 from VM or from HDD?

    I really want some help. I feel like throwing out my imac through the window!

    (my optical drive = broken)