Need to take Windows with you, but can't take your laptop? If you frequently travel and need a computer, but you don't want to pay for the extra weight. You can solve it by putting Windows on a USB drive. If you have access to a display, a keyboard, and a mouse, you can stay productive wherever you are. Besides, a portable Windows will significantly benefit you when the computer suffers from a boot failure. With portable Windows available, you can boot the computer successfully and then rescue your files.