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DUAL Boot MacOS and Windows 10 or 11 (New Find)


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Greetings, I 've been researching dual booting for a few days and have come across three ways.

 

The first way was way too obscure lacking step by step from the get go.  Rather oblique and obscure leaving gaps in the instructions lack of details.

The second way was great in getting Windows on the Drive.

The third way again lost in the woods.

 

Here on this YouTube video this person actually installs Windows 10 on APFS formatted partition.

Big Sur is on the first partition.  Windows 10 on the second and this person makes it so easy and simple.

 

Take a look and give it a whirl

 

https://www.youtube.com/watch?v=OqvHtwHUROc

 

 

I did manage to get Windows but not exactly dual boot within OpenCore.  The destructions were terrible.

 

This video shows how to do it simple like.

 

Create partition APFS.

Make a back up of the EFI.

Install Windows with USB Installer.

Install normally as would on a single OS situation.

Reboot. turn off the PC, Plug in the USB the one you backed up

Boot into Opencore boot into Big Sur.

Mount EFI delete Boot and OC folders, there should should be an Microsoft folder in there leave it

edit the file, place Boot and OC into the EFI reboot.

Upon boot no Windows Drive. Boot into Big Sur or whatever your OS is 

Mount EFI once booted into Desktop mode, open the Microsoft folder edit file, save, close

reboot, Windows drive should be there, boot into Windows.

 

Haven't done it yet, but there seems to be something missing to do prior to all this.??

 

 

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17 minutes ago, makk said:

Seems Windows needs to be first before all the others.

Don't need first disk with this just make sure you point it to the right drive

e.g disk4s2 etc

 

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11 hours ago, STLVNUB said:

Don't need first disk with this just make sure you point it to the right drive

e.g disk4s2 etc

 

 

This is like Windows Live CD thing, but Windows Live USB.

 

This is cool. I wanted to do this years ago! Thanks

 

But today, I want my Windows to boot from within OpenCore which I have not succeeded in doing.

I am able to boot from within Clover only or on it's on from BIOS Boot Menu F9.

 

No luck booting.

 

On my hardrive at current:

 

EFI is on disk0s4  for Microsoft

Microsoft Reserved on disk0s3

Windows disk0s5

 

I copied over from EFI folder Microsoft folder and placed in my EFI folder on the main drive.


Does this bootx64.efi boot opencore too?

 

 

Edited by makk
just having my first coffee
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On 3/5/2022 at 3:46 AM, makk said:

Greetings, I 've been researching dual booting for a few days and have come across three ways.

 

The first way was way too obscure lacking step by step from the get go.  Rather oblique and obscure leaving gaps in the instructions lack of details.

The second way was great in getting Windows on the Drive.

The third way again lost in the woods.

 

Here on this YouTube video this person actually installs Windows 10 on APFS formatted partition.

Big Sur is on the first partition.  Windows 10 on the second and this person makes it so easy and simple.

 

Take a look and give it a whirl

 

https://www.youtube.com/watch?v=OqvHtwHUROc

 

 

I did manage to get Windows but not exactly dual boot within OpenCore.  The destructions were terrible.

 

This video shows how to do it simple like.

 

Create partition APFS.

Make a back up of the EFI.

Install Windows with USB Installer.

Install normally as would on a single OS situation.

Reboot. turn off the PC, Plug in the USB the one you backed up

Boot into Opencore boot into Big Sur.

Mount EFI delete Boot and OC folders, there should should be an Microsoft folder in there leave it

edit the file, place Boot and OC into the EFI reboot.

Upon boot no Windows Drive. Boot into Big Sur or whatever your OS is 

Mount EFI once booted into Desktop mode, open the Microsoft folder edit file, save, close

reboot, Windows drive should be there, boot into Windows.

 

Haven't done it yet, but there seems to be something missing to do prior to all this.??

 

 

 

Turns out this video was made not too long ago but the person deleted all their accounts listed or they were terminated.

Making partition for windows doesn't seem to matter what format because it will be deleted anyway.

So you can make it MyBigToe format and then boot into your Windows Installer and when you are at the select your location

just select and delete. Created new or just select the deleted and proceed.

 

12 hours ago, STLVNUB said:

Don't need first disk with this just make sure you point it to the right drive

e.g disk4s2 etc

 

 

Not able to boot from this USB stick.

Any ideas?

on my end at great loss? I'm not sure why any microsoft stuff does't boot

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15 hours ago, makk said:

 

Turns out this video was made not too long ago but the person deleted all their accounts listed or they were terminated.

Making partition for windows doesn't seem to matter what format because it will be deleted anyway.

So you can make it MyBigToe format and then boot into your Windows Installer and when you are at the select your location

just select and delete. Created new or just select the deleted and proceed.

 

 

Not able to boot from this USB stick.

Any ideas?

on my end at great loss? I'm not sure why any Microsoft stuff doesn't boot from within OpenCore....LOL

OpenCore Version is 0.7.8 Debug version.

 

Edited by makk
Darn double post.
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@STLVNUB

 

Here's the latest addition.  

Opencore on it's own partition.  Seems faster.

I accidentally deleted the Microsoft folder in the EFI oops...haha

 

in OpenShell, the Windows data link to it has gone bye bye... it reads BLK14 it was FS10: 

So when I add an entry into Misc>Entry, it don't show up. Just the auto for EFI without the folder... strange. 

It should also pickup the Windows data partition in Open Shell.  

 

Question are you running Monterey 12.2.1?

 

Screen Shot 2022-03-12 at 8.10.36 AM.png

I think I need to find a better Mac Profile then this old one. MacBook Pro 12,1.

What are you running?

 

Seems like you have a screamer there 64GB RAM.

do you have a website for INSTAhackintosh?

Edited by makk
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On 3/11/2022 at 4:18 AM, makk said:

Thanks

Will see if it works on my hardware.

Windows installs just not through OpenCore.

 

Seems Windows needs to be first before all the others.

This file has malware on it. Delete

On 3/10/2022 at 11:01 PM, STLVNUB said:

Use This Windows Install.app.zip

Just pass iso and destination drive and it makes working copy of win10/11

@STLVNUB

 

This file has a malware,  on it.  Delete

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On 3/12/2022 at 11:33 PM, makk said:

 

do you have a website for INSTAhackintosh?

INSTAhackintosh

Now that's a name I haven't seen in a while.

Ended up looseing it in a hdd crash.

Doesn't appear too be on the net any more.

If anyone has a copy of it can they PLEASE give it to me.

 

So how did you know that there is Malware in Windows Install

Doesn't matter which hdd you install Windows when using 

Windows Install..

Edited by STLVNUB
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28 minutes ago, STLVNUB said:

INSTAhackintosh

Now that's a name I haven't seen in a while.

Ended up looseing it in a hdd crash.

Doesn't appear too be on the net any more.

If anyone has a copy of it can they PLEASE give it to me.

 

So how did you know that there is Malware in Windows Install

Doesn't matter which hdd you install Windows when using 

Windows Install..

 

I copied the Microsoft EFI Folder (from a newly created one) to EFI OpenCore <> accidently deleted the original one.

Then had no boot situation for Windows from within OpenCore.

Then went into Open Shell to boot up Windows using:> FSX: \EFI\Microsoft\Boot\bootmgfw.efi <> which failed

This then created a no boot for all MacOS. The boot sector was left with a pointer that is not useful>

Windows was no longer a FSX but a BLK which means it is not in the listed boot order with FS9 or FS10 or FS11, etc.,.

 

Then used my USB boot copy to boot into MacOS

I always have -v option to see the errors and what not. 

while watching the screen there was:> "WFT! Finger!" and encrypted stuff scrolled about 20 lines to grace the screen. Malware

So wiped drive and started over to get rid of the Malware. Zeroed it with Secure Format.

 

I would check the File closely and run a sophisticated scanner to get it.

 

Other than that I still cannot boot Windows from inside OpenCore though it is listed.

 

I found another method to install this hopefully having Windows First Partition

 

The issue is APFS formatted drive which I have not much experience having Windows which uses NFTS

 

Logic.

 

So if I use Window to install first and create a NTFS partition on the first partition what's to say that APFS doen't change

 the disk designation as I've seen done already? these two contend on the same drive.

So the conclusion is to have a dual drive setup and not external to the computer.

Laptops are a bit difficult to have two Drives inside it unless you can find one that allows several drives. LOL!

Dual drive Laptop!  hahaha...

So have to deal with this non-sense until we have order and happiness for both OS flavors. Contentment.

 

 

 

 

 

 

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  • 3 weeks later...
On 3/14/2022 at 5:29 AM, STLVNUB said:

 

Doesn't matter which hdd you install Windows when using 

Windows Install..

Another GOOD feature of Windows Install is that it puts the Bootloader on the same disk,

so OC and Clover boot it natively, no mucking around  ;)

Oh yeah the disk needs to be formatted Fat32 or Exfat for Windows Install to do its magic

Edited by STLVNUB
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On 3/14/2022 at 4:12 AM, makk said:

This file has a malware,  on it.  Delete

Probably false alarm

Just ram MalwareBytes and didn't find anything

What virus checker you running as I will run a scan with it

Edited by STLVNUB
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