Dear Karen, I have not done this myself in all the years I have had a Mac except back in the 90's with Disk First Aid. I did open disk Utility and went to Disk Utility Help. Under Disk Repair it tells how to repair the disk. If it is the disk that is also being used as the start up disk, the disk utility is a little limited. Apparently , it is better to run Disk Utility from the original Installation disks if they are available.
I hope this helps. Best Regards, Robert -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to macvisionaries@googlegroups.com. To unsubscribe from this group, send email to macvisionaries+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en.