you can easy recover them.

try to answer this questions :

1-You have any old email address or account with uploaded those files ?
2-is there the Hard disk still alive ? i mean from that time the hard disk is work ? 2010 till 2014 ? 2015 ? or now ?
3-there is some method for back files from that day you attach the hard disk till the time the hard disk is work.


P.S : i can help you about this problem,i can share information and you Must do it yorself to recover it.
i help someone with this problem in year 2016 about 151 BTC.
after recovery done and he find the info and import in wallet we found a backup in old email address.
so its why i asking you the FIRST Question.


I Hope you can back it.
its 600 , there is wallet with 25.000 BTC lost in this forum ...