To assign a drive letter to it, right-click on the partition and select “ Change Drive Letter and Path“.
As you can see, the disk is online, it has one healthy partition with the NTFS, but it is not assigned with a drive letter. In the list of drives, locate the connected removable USB drive. To do this, open the Computer Management console (via the Win + X menu) and go to the Storage section -> Disk management. To make the drive available in the system, you must assign a drive letter through the Disk Management console each time manually.