I see several favorable responses for RegDefend, but I am a little curious. I currently have a software program that "repairs" invalid registry links as well as deletes invalid registry entries, etc., but would it conflict with a program like RegDefend? I am not PC literate enough to fully understand the registry entries and wouldn't even attempt to manually operate on my registry myself, but it sounds like RegDefend basically prohibits any changes to be made to the registry without the user's consent. Therefore, would it conflict with other software programs like Tune-Up Utilities, or Fix It Utilities, that basically take human error out of the equation when repairing or deleting registry entries? Or with other "cleaning" utilities, such as Privacy Eraser Pro, Win Cleaner, etc.?