Open Boot Camp Assistant, which is in the Utilities folder of your Applications folder. Follow the onscreen instructions. If you're asked to insert a USB drive, plug your USB flash drive into your Mac. Boot Camp Assistant will use it to create a bootable USB drive for Windows installation.
OSX El Capitan installed on a 256GB Samsung SM951 AHCI ssd (via PCIe Lycom DT-120 card) - Windows 10 19041 installed on a 512GB Samsung 850 PRO ssd (regular internal hard-drive bay) with Boot Camp 5.1 Everything works great and the system is still reactive and reliable. So, why upgrading? Oct 01, 2015 It places this partition right after the recovery partition, and before the Boot Camp partition, as shown below. Definitely great news for those looking to install Windows on an El Capitan Mac as the whole process is a lot simpler. However, this particular setup is not available for all El Capitan supported Macs. It places this partition right after the recovery partition, and before the Boot Camp partition, as shown below. Definitely great news for those looking to install Windows on an El Capitan Mac as the whole process is a lot simpler. However, this particular setup is not available for all El Capitan supported Macs. Mac El Capitan Boot Camp Windows 7 Hackintosh Update Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available.
I have a Mac Pro 3,1 with an ATI Radeon RX580 8GB graphics card, a dosDude Catalina (10.15.6) install on an internal SSD and and a Windows 10 Pro (latest Version and updates) install on an internal HD.
Both macOS and the Windows work fine along with all parts of the Mac. As I a have the Radeon card I do not have a boot screen until either Catalina has mostly started up or Windows has started to boot, so I cannot change the booting by holding down the Option key.
Boot Camp El Capitan
I previously ran El Capitan instead of Catalina, and with that I had installed in Windows the Boot Camp 4 drivers, which allowed me to select macOS from the Boot Camp Assistant and reboot from Windows into El Capitan. From El Capitan I could select the Windows drive in the start up disc control panel and reboot into Windows.
However, since upgrading to Catalina, I can still select the Windows drive in the start up disc control panel and reboot into Windows. However if I select macOS from the Boot Camp Assistant and reboot the Mac, it always reboots into Windows.
My current work around is to shut down, remove the Windows drive, reboot in to Catalina, select Catalina in the Startup Disk control panel, reboot into Catalina, shut down, re-install the windows drive, start up and it starts up into Catalina again with the Windows disk mounted. I can then just select the Windows drive in the start up disc control panel and reboot into Windows when I need to.
From what I have read it's an issue with boot camp not liking the APFS file system Catalina uses. I have also read that a newer version of Boot Camp would fix the issue. I have upgraded Boot Camp to version 6, but this cause other issues in Windows and in the end I had to format the windows drive and re-install it from scratch along with the Boot Camp 4 drivers.
Can anybody tell me how I can get this issue sorted out so I can just switch using Boot Camp?
Many thanks
El Capitan Camp Santa Barbara
Duncan