The only El Capitan-running Macs that support the new USB drive-less Windows installation are the 11- and 13-inch MacBook Air, the 13- and 15-inch MacBook Pro and the Mac Pro. As soon as you see the rEFIt boot menu when starting, it's good. Reboot twice for rEFIt to install properly. I believe that the 'Install Windows by PXE-booting' option requires Windows Server to be running and set up properly on your local network.

A 4GB USB-key is not very expensive and most likely the simplest way to do it. Use Disk Utility to create a FAT partition a little larger than your wanted Windows partition. This approach will most likely not work without a lot of elbow grease. Once Windows is installed and the user boots back into OS X, the 'OSXRESERVED' partition is removed and the space reserved for that partition is added back to the OS X partition. Install windows (bootcamp) without CD or USB Flash Drive. The 'OSXRESERVED' partition includes all the installer files, Boot Camp drivers and EFI files required for to create and boot the Windows partition. It places this partition right after the recovery partition, and before the Boot Camp partition. The change comes from Apple reworking how many partitions Boot Camp Assistant creates, according to Twocanoes.īoot Camp Assistant doesn’t just create a Boot Camp partition, but also creates an additional partition called “OSXRESERVED” that is FAT32 formatted. Once Boot Camp Assistant completes its tasks, the computer restarts with the normal Windows installation processes.

Boot Camp comes with a modified interface that places the ISO image selector and partitioning on a single screen, allowing a user to easily select an ISO image and partition their hard drive before installing Windows.

How to use bootcamp without usb