Is it possible to have a USB that can technically have 4 partitions: 1 Windows 8.1, 1 Mavericks, 1 Ubuntu, and 1 for normal use?
With the 3 OS's being bootable to install to a computer? Possibly a hackintosh bootloader if there's no official way.
With the 3 OS's being bootable to install to a computer? Possibly a hackintosh bootloader if there's no official way.