chucky9 :
what am i meant to do then?
1. Go back two days, perform the same procedure, but this time don't break off that component
or
2. Retrieve the critical data from your backup
or
3. Accept that it is gone
Everyone loses a drive at some point. Accident, failure, droppage, accidental formatting.....
That is the point when you decide to: 1) backup, and 2) decide what is really needed in that backup