This morning suddenly, I noticed that one Seagate 1Tb HD has apparently disappeared, at least it can't be seen in Win
Explorer & I can't access data on that drive in any way.
OS is Win 10
All has gone quite well for some months now; until now that is.
I have one additional 2TB HD & a 256Gb SSD.
I have attempted recovery of the drives using Windows disc management, HD Tune, Mini Tool, & EaseUS partition recovery.
None are able to see the drive in question.
As I recall the drive was reporting OK "health".
MY Google searches have proved fruitless.
Greatly appreciate guidance to restore.