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User avatar
by: sleeplesswaves
Hello all,

Here is the system I'm building now:

I'm just missing the power supply... I have two NVME 2TB drives installed. I'm planning on setting up dual boot and have one boot Catalina and the other Windows 10.

I thought this would be relatively straight forward, but after some quick Googles, it seems a bit of a rabbit hole. The best solution seems to be disconnecting all drives but one and install each OS separately and then just selecting in the BIOS which to boot... But my NVME drives are under heat shields and under another shield from the motherboard... So a bit of a pain...

In this thread:
https://www.tonymacx86.com/threads/dual ... es.256830/
Somebody suggests having a small SSD drive installed and set that as the boot drive in the BIOS with GRUB or Clover, etc. so it's separated from your OS drives.

I'd love suggestions on the "cleanest" or most "elegant" way to do this... Is it better to just deal with taking all the heat shields off the NVME drives and dealing with it? Or does this third drive solution seem better? Is there another better solution?

Thanks for your input!


User avatar
by: Shaneee
I have Windows installed on a SSD and macOS on my NVME drive. What I do is keep a working copy of my EFI on a USB incase Windows decides to overwrite it but it shouldn't. As long as you install on the seperate drives and make sure you don't get them confused and select the wrong one you'll be fine to install.
User avatar
by: Azrael9
I'll make a note of that. So a dual boot is doable then.

So I can buy a pre-built Windows PC (spec that works with AMD Hack') that has two boot drives with Windows pre-installed on one and I just install the Hack' AMD on the other.

Do dual boot options show on the windows start up screen eg. like they do Mac? And then you select which one you wish to boot? :idea:

User avatar
by: Shaneee
OpenCore will boot to macOS or Windows yes.
User avatar
by: sleeplesswaves
@Shaneee So which OS handles the booting options? If I install Windows first, is there a windows boot loader that handles things? Or does the OpenCore handle which OS to boot even if it's installed second? Does the order of things matter? Or should I install each OS on each drive with the other drive uninstalled? I've seen many people saying this is the safest option. Thanks for the input!!!
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