iMac with a broken Superdrive and Windows 7

[McRen]

Hi ,
I'm sorry if this is something that has been asked before , I can't find a way to install windows 7 on my iMac .. I've tried several time to do it with bootcamp and an external drive but even when it does install windows then it can't boot from it " no booting device found " ..
my spec :
iMac 27" late 2009 ( iMac 11,1 - i7 - 2.8ghz - 16 GB) with El Capitain .
I read somewhere that it mught be possible to force BootCamp to make a booting usb but ....
Thank you vry much for any help .

R.

 

[appltech]

Try using another Windows 7 disk image, as well as a boot source (DVD, USB, avoid extenders)

 

[McRen]

Thank you , but I don't understand what do you mean ? I'm using an original iso and boot source as in a bootable USB ?
No DVD is possible the superdrive is broken . And I do not have any Windows machine :-(

 

[Nguyen Duc Hieu]

Thank you , but I don't understand what do you mean ? I'm using an original iso and boot source as in a bootable USB ?
No DVD is possible the superdrive is broken . And I do not have any Windows machine :-(

By default, Windows cannot run from a USB disk. Only the Windows USB installer can boot to install to an internal disk.
You need some simple hack using Rufus, a program only run in Windows environment, which is not applicable in your case.

If you only have the iMac 2009, then try the following procedures and describe the error more detailed.
1. Upgrade your Mac OS to High Sierra and its latest patch/updates
2. In High Sierra, use BootCamp Assistant to create BootCamp Partition, download the BootCamp Driver for Windows (USB 1), and download the Windows ISO to create a Windows USB installer (USB 2). (if you have already got the USB installer, then skip this).
3. Plug in USB 2. and boot from it. There are 2 methods: from System Preference, or at power-up stage.
4. Now install Windows to the BootCamp Partition.
5. Boot Windows from the BootCamp Partition and install BootCamp Driver to it.
6. From Windows, use the BootCamp control panel to boot Mac OS.
7. From Mac OS, use system preference to boot to Windows.
8. If something screw-up, do a PRAM reset and your iMac will boot from the first partition it can find (which is High Sierra in your case)