>>> I wanted to avoid windows, I can't get on with it. When I said keep it off the pc, I mean I have a plug memory
I'm still confused! Everything you do on a PC uses Windows, whether that be typing a document in Word (or similar), viewing a webpage in Chrome (or similar), etc, etc. A USB memory stick (which, I'm guessing is what you mean by 'a plug memory') simply adds additional storage capacity to a PC. If you want to create folders to store your images in (or allow some software to do it for you), it's entirely up to you as to whether those folders are placed on your PC's hard drive or onto a memory stick.