may well be the answer to this problem.
DW rebuilds the directories on the disk and once they are back in shape, the disk will usually mount.
Bear in mind that DW, or TechTool Pro, are unable to repair disks that have a hardware problem.
DW is your best bet.
In Disk Utility, is it possible to select the Gray disk and choose Mount from the menus?
P
My volume Macintosh HD is unmounted right now on Disk Utility. You can see the volume under the disk, but it's gray and it says it's not mounted and so the computer doesn't recognize it and I can't start up or anything. Can DiskWarrior or Tech Tool Pro fix this?
Thanks.

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