I bought a new portable drive to use as my Time Machine drive, but stupidly forgot to backup some files from the old Time Machine drive before I formatted it, and now I need to recover some files. I searched through this website and found that TestDisk has been repeatedly suggested for this situation. I have downloaded it but found it rather cryptic to use. Its website does not have much help either. Can anyone walk me through how to use Test Disk please? Thank you
EDIT: More details My original partition was this: Partition 1: Time Machine, 600GB Partition 2: Regular backup drive, 400GB
Current Partition: Partition 1: Time Machine 1, 500 GB Partition 2: Time Machine 2, 500 GB Two Time Machines for two devices.