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Beginners Guide to Dual Boot Windows and OS X

Going Bald

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Joined
Aug 14, 2010
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22,512
Motherboard
GA-X58A-UD7 Rev.1 BIOS F7
CPU
Intel Xeon W3670
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RX580
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iMac, MacBook Pro, Mac mini
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Hello.


Trying for a dual-boot Win/MacOS machine, on two SSDs.


I have a refurbished HP 8300 Elite w/ GTX 1050ti GPU. The machine SSD came with windows 10 installed but it was legacy. I re installed Windows non-legacy and it works, but there’s a catch.

I have a 2nd SSD with Sierra. It works, too. But there’s another catch.

When I’m in Windows then restart, or shut down then re-boot, Clover does not load. It goes straight to Windows. If I disconnect the Win SSD I get Clover back, and I see my MacOS SSD.

If I then shut down, re-connect the Win SSD and boot, I get Clover with both Win and MacOS.

If I ONLY boot MacOS, I consistently get Clover. But if I choose Windows, it boots fine - but as soon as I restart I lose Clover, and it boots straight into Windows again. I have to shut down and disconnect the Win SSDS to get Clover back again.

I did my best to follow the guide on building on an HP 8300 Elite, but I have no idea how to solve this.

Suggestions?
This is a BIOS/UEFI setting problem and is common on any of the Sky Lake or later CPU UEFI based boards
 
Joined
Oct 15, 2018
Messages
5
Motherboard
HP Compaq Elite 8300 CMT
CPU
i7
Graphics
GTX 1050 Ti
Mac
iMac, MacBook Pro
Classic Mac
Classic, iMac, Power Mac
Mobile Phone
iOS
This is a BIOS/UEFI setting problem and is common on any of the Sky Lake or later CPU UEFI based boards
Thanks G'Bald. Is there a known resolution for this?
 
Joined
Nov 18, 2013
Messages
10
Motherboard
Gigabyte GA77z DS3 Version 1 Bios version F11a (Beta) was F5
CPU
1155 i7 Intel processor 3.4 Ghz
Graphics
GeForce GT 730 2048 Mb Nvida Graphics PCI card
Mac
MacBook Pro, Mac Pro
Mobile Phone
Android
I am in the process of dual booting a a second PC MSI H611 E35 mother board 8Gb of ram i3 processor, original I intended to make the same installation as to my present desk top as I subscribe keeping separate OS and drives.
The original has worked good for a number of years originally with Maverick and Zorin must comment both these systems put MS to shame. Switching between the two drives was made before booting via a simple two way six pole switch splitting the Yellow 12v. and the Red 5v. between the two drives, with a Gigabyte GA-Z77 board this worked perfect name in the two drives in boot order. Unfourtunaly this did not work on the MSI board hence my search for alternative solution, sure it became a problem and reinstalling Sierra was not straight forward as each installation appears to require that the hidden files are deleted from the host drive before you can get a clean installation.
Clearing the Bios presented an issue that the board was bricked I believe the Bios chip has given up any body get a new Bios chip to install ?
Has any of the subscribers experience of a good boot manager to take acre of two OS, I prefer that the MBR is left as the OS intended and keep both systems separate.
Tim
 
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