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The SES driver is not required for your drive to be recognized by your computer. If your drive is not recognized please see Answer ID 1708: I cannot find drivers for my WD drive and/or my Operating System fails to recognize my WD drive.

The SES (SCSI Enclosure Services) driver is different from the Virtual CD, and the WD SmartWare software. To access many of the optional features of your drive, you will be required to install both the SES driver, and the WD SmartWare software. If you wish to use the drive as a simple hard drive and do not require access to the advanced features of the drive, you can hide the VCD by following Answer ID 3835: How to disable (hide) the Virtual CD (VCD) for Windows or Mac OSX on a My Book or My Passport drive . Western Digital still recommends installing the SES driver when not using WD SmartWare, but the drive will function without it. The prompts to install the driver are part of the Windows Operating system and will always occur when connecting a drive to a Windows PC without the driver installed. Learn more.