Question: what to do for setting back a partition?
Tried several things "normal" procedure did not work
cleaning harddisk and using backup same story
By the end of the day I lost some Pages documents, part of a diary, may be they are in the "starting up" disk which shows a large volume
How to repair this ?, to avoid a very expensive "recovery" of a specialist.
Any help greatly appreciated..
iMac (21.5-inch Mid 2011), macOS Sierra (10.12.5)