Hi,
I currently only have one 32 gb USB drive and I would like partition it into 3 drives and then use that to boot and install 3 operating systems (windows 10 home, windows 10 education and Ubuntu 16.04). Is that possible? Could the formatting phase affect the other 2 partitions of the USB drive? Similarly, can I do the same process on an external hard drive? In other words, can I partition the external HDD and thereby section off my personal files and still be able to use that external HDD to boot and install the new operating system? I hope my question was clear. If not, let me and I will provide more information. Thanks!