Hello & Thanks for taking the time to read this post!!! Every time I log into my regular profile I am told the profile is corrupt and the system then proceeds to log me into a "temporary" profile. I did a lot of searching on the internet for answers and am now at a point of repair where I cannot find anything to guide me during the "surgery". What I have learned & done: First off, most posts (including Microsoft) refer my symptoms to a corrupt ntuser.dat file. This file cannot be accessed if it is currently loaded by the system, nor accessed using another profile that uses the same windows partition for its loaded files. Second, I found many references to using RegDatXP as an excellent tool for restoring a "corrupt" file from the "systems" backup directories or from a manual backup I might have made. ( My last backup is 2 months old.. yes, yes.. stupid me ) Third, I bought RegDatXP and following its Help files, I now have slaved my original HD to a temporary HD. Fourth, I'm a beginner at working in the Registry. I know you can mess things up quickly & permantly if you are stupid enough to change things you don't understand or aren't sure about what you're doing. Fifth, I'm smart enough to pick up on things by reading manuals or help files as long as the authors aren't expecting a base knowledge above my level. My Situation: RegDatXP's help files regarding the repair process are above my knowledge level. I'm confused on how to repair the ntuser.dat file that is located in the profile of the slaved drive. I don't want to mess things up further by being ignorant & too stubborn to ask for help. My Computer Specs: The original HD was running XP Pro SP1. The temporary HD happened to have Win 2K Pro loaded. (If I need to be slaving to the same OS then I can immediately install XP Pro) For anyone who takes the time to post a thought-out & well-written set of instructions for me to follow, investigate or tryout, I Thank You Very Much In Advance!!!