I spent 24 years in IT and specialized in a number of areas, one of them being Data Center Backup and Disaster Recovery.
My old PC was having issues, and my work PC needed an upgrade. So I started to back up the data from the machines, onto my NEW External Drive, one by one.
Work PC - Once I had the data on an (expensive) external drive, I was confident I had everything, so I formatted the old drives to do a fresh Windows 10 install.
Home PC - With most of my restoration documentation. Literally GIGS of photos. I copied the data, then formatted one of the drives ready for a re install on a new Hard Disk. While I was waiting for this to happen, I started receiving Hard Disk errors on all my drives ! I rebooted after the PC locked up, and EVERYTHING BACKED UP on the NEW and EXPENSIVE backup drive was gone.
I took the drive to my work PC - Not recognized. Removed the drive from the casing and tried everything = DEAD drive, but still spinning.
Currently, the drive is at a professional Data Recovery Centre and I WILL get all the data back - but at quite a cost..
I might have to look at these Solid State Drives from now on. But for now, I will just have to wait for the cost of recovering the disk
Morale of the story - Back up your data - OFTEN..