We sent our laptop to HP's approved repairers with very clear instructions (email, and on instructions taped to top of machine) not to wipe the hard drive during the repair, and that if this was essential to the repair we would prefer not to have the machine repaired; instead, we'd send the machine to a specialist repairers to attempt to retrieve the hard drive instead.
And then.... it came back from repairers yesterday with no data, completely wiped clean.
What do we do, aside from complain to HP/ the repairers? Can we ask them to pay for specialist retrieval do you think?
We have most of the data backed up on an external hard drive but not all.