btayoga.blogg.se - Dual boot macos and windows 10

That’s it! After restart your bootloader will start and you can select Windows or macOS.

Note: This will modify the "Windows Boot Manager" UEFI boot entry to not load the "bootmgfw.efi" which loads Windows default, but our own Clover or OpenCore loader instead, then Clover or OC will load "bootmgfw.efi" (so Windows) instead Restart the system, you’ll see that Windows will automatically boot, so we need to make Clover or OC to default bootloaderīcdedit / set path \EFI\OC\OpenCore.Note: if using OpenCore, in ist set Misc/Security/BootProtect to “None”.Copy the Clover or OC folder to the EFI folder.Remove the USB and now mount your system EFI.After arriving to desktop mount your USB’s EFI and copy the Clover or OC folder to desktop (BOOT folder isn’t needed).After installation finished boot the installed macOS with your USB.Now boot from the macOS Installer USB and format the MAC partition to APFS with Disk Utility.Open “diskmgmt.msc” again, now create a new partition for macOS from the remaining Unallocated space (name MAC, format ExFAT).That’s it, restart the system and boot to Windows again.( assign a letter to your EFI in order to manage it ) exit ( we can exit from diskpart now )īcdboot C : \windows / s B : ( this will re - create the EFI files for Windows ) exit Select your EFI ( System, 100 MB, for example “ 1 ”)Ĭreate partition efi size = 200 ( this will create the new EFI partition with 200 MB size ) ( will list your partitions on the selected disk ) ( will list your drives ) Now select your Windows drive ( for example “ 0 ”) ( note down your Windows partition letter. ( this is the Windows partition manager )

At “Advanced options” select “Command Prompt”.

Boot from the Windows installer USB, click “Repair your computer”.

Right click, Shrink your Windows drive to create unallocated space for macOS (do not create a new partition yet).

Win + R, open “diskmgmt.msc” (Create and format hard disk partitions).

So the problem is that the Windows EFI is 100 MB, not 200 MB so the macOS Disk Utility will fail when creating the new APFS partition for macOS, we need to resize the EFI first Install macOS when Windows 10/11 is already installed

A GPT-UEFI Windows 10 or 11 installer USBġ.

Important note: This will ONLY work if your system is in GPT (GUID)-UEFI mode (not MBR-Legacy)

Install macOS when Windows 10/11 is already installed.

When you have an empty disk and want to install the two OS When you have macOS installed and want to install Windows on a new partition When you have Windows installed first and don't want to lose all your data (should work with Windows 8 and earlier versions of macOS but they're untested) All-in-One Dual-Boot Guide for all scenarios