offficial_florin Posted December 4, 2016 Share Posted December 4, 2016 Hello. I had a perfect running system with macOS 10.11 for almost 6 months. Today I upgraded to Sierra and it ruined all my setup. One kernel panic after another, Sierra is just not ready yet. Long story short: I need to work with that computer in Windows tommorow, thats why I install Windows 7 on it now. I have two problems now: 1, I have a installation disk and I installed macOS 10.11 succesfully two times with it. Now, when I start to boot is it gives me a kernel panic. Why?? 2, Is there any way I can keep my now installed Windows 7 as a Dualboot to my tommorow installed macOS 10.11? 3, If no: How can I install macOS 10.11 and Windows 7 and what partitions and bootloader settings do I have to make for that? Thanks for response and feedback. Have a nice day! Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted December 5, 2016 Administrators Share Posted December 5, 2016 if you installed windows 7 in EFI mode then you should be ok. if your using clover it should detect windows 7. as for the KP's post a picture of it booting in verbose mode. Link to comment Share on other sites More sharing options...
offficial_florin Posted December 5, 2016 Author Share Posted December 5, 2016 ok thanks, here's the screenshot: Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 5, 2016 Moderators Share Posted December 5, 2016 Your graphics is causing the KP. Make sure DVMT has not been reset due to whatever reason. Check offset 0x15b and 0x15c are still set to 0x3 Link to comment Share on other sites More sharing options...
offficial_florin Posted December 5, 2016 Author Share Posted December 5, 2016 okay, how do I check it? Do I need Windows on the computer again to download backup the BIOS again? And why should it have changed? The guide says that even in case of a BIOS update is stay like it is. But how I check it? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 5, 2016 Moderators Share Posted December 5, 2016 You'll need the EFI Shell boot disk. Run setup_var 0x15b to see what value it outputs, same for 0x15c. If they are not 0x3, then change them. In my experience while updating BIOS, the settings stick, but I read a member here said it somehow changed due to Windows update and not a bios update. So it's better to be sure and check it. Link to comment Share on other sites More sharing options...
offficial_florin Posted December 6, 2016 Author Share Posted December 6, 2016 ok, I'll check that right away. And how I do the thing with the booting? Can I install macOS on that macOS Partition and does it let me start windows and mac ? Link to comment Share on other sites More sharing options...
Administrators Hervé Posted December 6, 2016 Administrators Share Posted December 6, 2016 There is a dedicated section about multi-OS booting. https://osxlatitude.com/index.php?/forum/172-multiple-boot/ Link to comment Share on other sites More sharing options...
seeker_pl Posted December 8, 2016 Share Posted December 8, 2016 You'll need the EFI Shell boot disk. Run setup_var 0x15b to see what value it outputs, same for 0x15c. If they are not 0x3, then change them. In my experience while updating BIOS, the settings stick, but I read a member here said it somehow changed due to Windows update and not a bios update. So it's better to be sure and check it. After BIOS update settings will remain, but not if you reset your BIOS settings to defaults, then you need to change the 0x15c and 0x15b to 0x3 again. 1 Link to comment Share on other sites More sharing options...
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