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Albags, the message box said important, etc and didn't know whether to install, confess that i may have installed stuff that wasn't necessary. I will do as instructed, there is one thing, if you do a back up disk, keep it safely stored, and you want to do more backups, to stop from losing any further data, do you use the same disk or another one. The backup disk has pictures of family, friends, letters that are important. But don't know whether you put that back in computer and ask to back up same disk. Does that make sense.