



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
