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Apple Computing Products:
Running Windows on your Mac
Why unable to boot from DVD after Windows reinstallation
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<blockquote data-quote="helenmai" data-source="post: 1803375" data-attributes="member: 400845"><p>Hello,</p><p></p><p>I am the very happy owner of a late 2009 27inch iMac (model 11,1). I installed bootcamp and Windows 7 a year ago. I upgraded to Windows 10 this year. Following a software install issue, I had to reinstall W10. This never succeeded. Since then I did many tests to no avail and ended by deleting all partitions in the hope of starting anew. But now I am stuck, it still refuse to start up (grey/black screen after the initial white screen). The situation is the following : </p><p>- If I boot with the "C" key pressed (boot from Windows DVD), the iMac enters a cycle of Windows 10 diagnostic and reparation that concludes with a reboot after a few screens and questions, and then back to square one with the grey/black screen</p><p>- If I boot with the "D" key pressed (Hardware Diagnostics), nothing happens. I tried to boot (D) from the Apple Application Disk in order to launch the Hardware Diagnostics, nothing happens</p><p>- If I boot with "Alt" key pressed, the only option displayed by the Startup Manager is "EFI Boot". If I insert my Windows install disk or my Mac OS install disk they do not appear as boot options</p><p>- Nothing happens when I try to boot with Verbose mode, Safe mode, etc. I believe that I tried all of Mac OS boot options without any success</p></blockquote><p></p>
[QUOTE="helenmai, post: 1803375, member: 400845"] Hello, I am the very happy owner of a late 2009 27inch iMac (model 11,1). I installed bootcamp and Windows 7 a year ago. I upgraded to Windows 10 this year. Following a software install issue, I had to reinstall W10. This never succeeded. Since then I did many tests to no avail and ended by deleting all partitions in the hope of starting anew. But now I am stuck, it still refuse to start up (grey/black screen after the initial white screen). The situation is the following : - If I boot with the "C" key pressed (boot from Windows DVD), the iMac enters a cycle of Windows 10 diagnostic and reparation that concludes with a reboot after a few screens and questions, and then back to square one with the grey/black screen - If I boot with the "D" key pressed (Hardware Diagnostics), nothing happens. I tried to boot (D) from the Apple Application Disk in order to launch the Hardware Diagnostics, nothing happens - If I boot with "Alt" key pressed, the only option displayed by the Startup Manager is "EFI Boot". If I insert my Windows install disk or my Mac OS install disk they do not appear as boot options - Nothing happens when I try to boot with Verbose mode, Safe mode, etc. I believe that I tried all of Mac OS boot options without any success [/QUOTE]
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Apple Computing Products:
Running Windows on your Mac
Why unable to boot from DVD after Windows reinstallation
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