Invisible WD Passport USB Drive.

I have 4 External WD Passport USB drives connected to my PC, but 'This PC' shows only 3, however Disk Management shows as 4 as does Device Manager as per screen shots. I plugged the missing drive into my laptop which was then visible as a normal USB Drive, folders and files.
If I remove one of the Passport drives that is shown in This PC and plug in the missing Passport drive it is again not seen.

I can only assume there is something wrong with the drive setup, as drive 5 seems to have a different setup than the others. I do not know what settings may need changing, Active, Logical? It works fine in the laptop, can be identified in This PC under Disk Management and Device Manager, so I find this rather confusing.

Everything looks okay to me, with the exception that no drive letter has been assigned to disk 5. In disk management, right-click on the large block that says "931.4 GB Healthy (Primary Partition)". Then select "Change drive letter and paths". This will allow you to assign a drive letter to this drive.

From what I can see, it looks like that is all that is needed.

I'm not sure....but it may limited to three disks?.....or what?



*1: The PCIEX16_2 slot shares bandwidth with the PCIEX1_1 slot, PCIEX1_2 slot and USB3_34 connector. The PCIEX16_2 runs at x1 mode by default for system resource optimization.
*2: These SATA ports are for data hard drives only. ATAPI devices are not supported.

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ASUS Motherboard P8P67 REV 3.1, LGA 1155, Intel P67(B3) Chipset, DDR3 Memory ATX | eBay

Was the "Missing" drive ever used with Linux or say MacOS? Does it show up if you boot with say a Linyx Live USB?

Thanks for your advice, added the drive letter and the drive is now seen.

Glad to hear it! Thanks for providing a status update.