Some are caused by using the front ports of desktop computers. I have to use the rear port to fix it.
There are also issues with these on older versions of Windows. XP, even SP2 had some issue that was cured by moving to SP3. The details about the host machine, Windows can't be found in this post but let's hope it's not some Malware issue.
Bob
A new, 2 TB Hitachi NESO drive appears after formatting but seems unstable.
I've checked I have the latest USB driver and have already reformatted once to NTFS (from EXFAT) thinking it might be more reliable.
I tried partition software too. It can 'see' the drive and (eventually) loads it. I successfully copied data to the drive and could read it in Windows file explorer. I shut down properly and when next I used the PC, the USB hard drive reported not available/corrupt.
I returned to the partition software. Again it eventually saw and loaded the drive. My confidence in it is waning rapidly.
Any suggestions please?

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