To verify that the driver is loaded, use:
USB Mass Storage Device Drivers are typically included in popular operating systems, such as: usb mass storage device driver
Technically known as USB MSC (Mass Storage Class), this driver acts as a universal translator. It follows a set of computing protocols defined by the USB Implementers Forum. Because most modern storage devices follow these exact standards, a single "generic" driver can handle almost any brand of thumb drive or external disk you plug in. How the Driver Works To verify that the driver is loaded, use:
Sometimes a Windows Update breaks things. usb mass storage device driver