Currently I have a good WINNT set up on my C:drive. Ideally I would like to copy this to my second HDD (F:)and save it for a rainy day along with the various software I have loaded. Then if (when) my C:drive goes down I will simply and quickly replace it in a caddy with my clean-running F: drive including the essential software I need to get up and running quickly. Sounds simple but whatever I try to copy or xcopy WINNT from the c: to F: drive I keep getting the "sharing violation" message because files I want to copy are being used. How can I get around this?