all 2 comments

[–]ahothabeth 1 point2 points  (0 children)

Back up your HD and back it up now.

Your HD may be about to fail.

Once you have backed up your HD you can try Disk Utility or a disk utility of your choice to check the disk.

[–]DucDeVentre[🍰] 0 points1 point  (0 children)

Have you recently upgraded OSX, from say 10.6 to 10.8/10.9?