hi, i accidently click on the erase drive mark and although i read that i will lose all data still click YES. How do I get back my backup files. I have not formatted the Passport. Thank You in advaance for any help.
Well, if they are backup files, just back your machine up again!
There are find, free utilities to recover deleted partitions (what exactly is an "erase drive mark?"). Try Recuva, EASEUS partition recovery, or any of the dozen or two mentioned in threads on this forum.