External operating system?
External operating system?
Yes, it's feasible to run Windows 8.1 with an external SSD alongside programs on multiple devices.
External means similar to a USB connection, like using something over USB. You can look up "windows to go" for details. This feature in Windows 8 lets you set up a portable, bootable Windows environment. It's mainly available in the enterprise edition, but it should work on regular Windows 8 with ease.