In W10 Backup my preferred drive is not listed via "Add a drive" button

WD External Drives External Drives for PC
1

Disk Management shows it with Status “Healthy (Primary partition)” I can view files in it. It is a WD 1TB MY BOOK ESSENTIALS EXT connected by USB and powered by an external supply.

Some other drives are listed via the “Add a drive” button and they all have the Status Healthy (ACTIVE, Primary Partition) but the above is not shown as Active. Why?

After googling Active I am uncertain if I will screw up something. How should I proceed please?

2

Hello, welcome to the community.

Does the drive shows under “This PC” area? Are you able to transfer information manually? What is the partition type?

3

Thx Iluna,
It is visible under “This PC”, I can transfer manually e.g. copy and paste to and from it and delete.

In Disk Management I cannot see a column headed partition type but there is one called simply “Type” and it says “Basic” .
Layout is Simple, File System is NTFS , Capacity 931.41 GB, Free Space 538.17 GB, % Free 58%

Down further it is shown as Disk 2 with two partitions. One is “96 MB NTFS Health (Active Primary Partition)” and the other " WD USB-only (H:) 931.41 GB NTFS Healthy (Primary Partition) " " WD USB-only" is what I named it to distinguish from another WD external drive that I have which has both USB and e-sata. That one is not connected at present as I keep it with backups offsite.

Is that an '86 car I see in your avatar? We have a white one too!