This is a Dell Inspiron 531 with an AMD Athlon+ 64 Dual Core 3GHz processor, running Windows 10 Pro 64 bit with 4 GB of DDR memory. Connected is a Western Digital Fantom WD5000AAVS-00ZTB USB hard drive. About a week ago the Fantom drive started spontaneously uninstalling and then reinstalling a few seconds later. It happens uncommanded multiple times per day. Usually its no problem, just a nuisance, but for the past 3 days it has apparently happened during my daily backup, which starts at 1:00AM, resulting in a backup failure that I had to do manually during the day. Today, during the manual backup the drive disconnected/reconnected during the manual backup, which I had to try 3 times before I got a good backup.
I did a CHKDSK with the /f option and it found no errors on the Fantom drive. I checked the drive in Device Manager and it said it was operating normally. Checked for an updated driver and it said I'm using the most current driver. I ran Dell hardware diagnostics and it found no error.
So what might cause this to happen? Is the drive going bad and the system can't detect it, or is there some tweak I need to do to Windows to prevent it from happening, or could it be something else? I'd appreciate any input on this. Thanks. By the way, the drive has uninstalled/reinstalled 3 times while I was typing this post.