WD My Passport USB Storage Support Driver for Windows

WD My Passport normally uses Windows USB mass-storage support without a manual driver. This WDC_SAM package covers Western Digital's supporting USB device entry that can remain unidentified on some systems.

WD My Passport driver overview

Use the package only when Device Manager shows the matching Western Digital hardware ID. A drive that clicks, disconnects or does not appear in Disk Management should be checked for cable, port and hardware faults before any driver is forced.

When this storage package helps

• Windows does not identify WD My Passport correctly after a clean installation.
• The vendor utility or controller package is missing after the storage device was moved to another PC.
• You need the exact local package, version, file size and checksum before making storage changes.

Supported Windows versions

Windows 11 / 10 (64-bit).

Before installing

• Test the original cable and another direct USB port before changing the support driver.
• Back up important data before changing a storage driver, RAID component, firmware tool or disk-management utility.
• Match the complete device model and supported Windows release; a similar product name is not enough.

Compatibility notes

The signed 4.55.25.661 package targets matching Western Digital USB support-device IDs on 64-bit Windows 10 and Windows 11. It is not a firmware updater and does not replace WD Security or backup software.

Common installation checks

• If setup cannot find the device, compare the hardware ID or exact model label with the package target.
• If Windows blocks the package, check the digital signature and use an administrator account rather than disabling security checks.
• If a storage device disappears after installation, restore the previous driver and check the controller mode in firmware before trying again.

Questions about this driver

Does this package erase files?

A normal driver installation should not format a disk, but storage changes carry more risk than ordinary peripheral updates. Keep a current backup before installation.

Can I use a package for a similar model?

No. Use the exact model or controller family listed by the manufacturer, especially for RAID, NVMe and vendor management tools.

The file is stored in the drivers-search.com library. Before installing, compare the model, Windows version, file size and checksum shown on this page.