UEFI Windows partition, change to legacy mode?

[lentife]

UEFI Windows partition, can't dual boot with Clover

Hi folks,

I am trying to dual boot OS X 10.11 and Windows 10. Mac works fine (default installation guide, with clover bootloader and multibeast post installation (UEFI, not legacy mode)). Now Windows:

I am using the Gigabyte z97xud3h and I installed Windows on a UEFI partition, it seems. Is there any way I can make it work or am i really forced to erase the drive and install it again in legacy mode? Any chance I can dual boot OS X and Windows on UEFI? When I boot with both drives connected, it only shows the Hackintosh partition.

Any tip is greatly appreciated!! Thanks a lot in advance!
Fred

 

[Going Bald]

Hi folks,

I am trying to dual boot OS X 10.11 and Windows 10. Mac works fine (default installation guide, with clover bootloader and multibeast post installation (UEFI, not legacy mode)). Now Windows:

I am using the Gigabyte z97xud3h and I installed Windows on a UEFI partition, it seems. Is there any way I can make it work or am i really forced to erase the drive and install it again in legacy mode? Any chance I can dual boot OS X and Windows on UEFI? When I boot with both drives connected, it only shows the Hackintosh partition.

Any tip is greatly appreciated!! Thanks a lot in advance!
Fred

If you installed Win10 UEFI mode you should be seeing 4 icons in Clover UEFI. To check Win10, open the disk management utility and look at the Win10 drive. What are the partitions shown for the Win10 drive?

 

[lentife]

Thank you for your help! It's much appreciated. Here are some screenshots:

 

[Going Bald]

You have Windows installed in Legacy mode. To double check this, boot using function hotkey to select a boot device and select the Windows drive, boot to Windows. Run the disk management tool and look at the Windows drive. How many partitions and what are they labeled?

 

[lentife]

I have one partition, plus what appears to be a 500mb partition reserved for the system. Seems to be indeed legacy mode. No references to EFI found. Now that we know it's legacy mode, can I just run multibeast and install the legacy mode drivers? Or what should I do?

 

[Going Bald]

I have one partition, plus what appears to be a 500mb partition reserved for the system. Seems to be indeed legacy mode. No references to EFI found. Now that we know it's legacy mode, can I just run multibeast and install the legacy mode drivers? Or what should I do?
View attachment 165239

With Windows installed Legacy mode you have choices:
Re-install Windows, reformatting the drive to GPT in the process.
Installing Clover in Legacy mode
Trying to convert the MBR partition scheme to GPT without having to re-install Windows.

You can try procedure shown at http://www.thewindowsclub.com/convert-mbr-to-gpt-disk , but before you try it make a disk image with the Windows backup tools and store it offline somewhere so you can restore it if the conversion does not go well.

 

[nicolasd]

hi !

quick question about fixing the non uefi windows install :

while my el capitan is uefi installed, will it be a problem to re install legacy clover ?

thanks

 

[nicolasd]

I erased a disk and created GPT table style on it (with live usb booted gparted).

I created what was supposed to be an UEFI usb bootable windows 7 installer with rufus (following some dedicated tutorials).

I checked the UEFI only boot mode in the bios of my mobo, but no way to see the usb as a bootable device.

When allowing legacy boot mode I can see the usb at boot. Of course it's not listed as a UEFI bootable choice, just simple legacy one.

Is there any special thing to do to make a true UEFI bootable windows usb key ?

 

[Going Bald]

I erased a disk and created GPT table style on it (with live usb booted gparted).

I created what was supposed to be an UEFI usb bootable windows 7 installer with rufus (following some dedicated tutorials).

I checked the UEFI only boot mode in the bios of my mobo, but no way to see the usb as a bootable device.

When allowing legacy boot mode I can see the usb at boot. Of course it's not listed as a UEFI bootable choice, just simple legacy one.

Is there any special thing to do to make a true UEFI bootable windows usb key ?

Use the Windows media tool to create the USB - Rufus does not create a UEFI installer.

 

[lentife]

while my el capitan is uefi installed, will it be a problem to re install legacy clover ?

That's exactly what I'd like to know. I guess I'll just try out and see if it works without having to reinstall OSX from scratch.