Windows CE is a compact version of the desktop Windows operating system that is compatible with mobile devices such as smartphones and PDAs. While you may use USB devices, such as flash drives, with your Windows CE operating system, they are not inherently compatible, even if the device works with other instalments of Windows. In order to use a USB drive with your Windows CE-based device, you must locate the drive's Windows CE drivers from the manufacturer's website.
Download your USB drive's Windows CE drivers from the drive manufacturer's website. Visit the drivers or customer support website listed in your USB drive's user manual or on its packaging (see Resources for links to three manufacturers of common USB drives). Perform the download from your Windows CE-based device. Visit the "Downloads," "Drivers" or "Resources" pages on your manufacturer's website to download the model's Windows CE drivers.
Run the driver's file on your device and follow the on-screen installation wizard's instructions, if prompted. Doing so allows your Windows CE device to recognise and work with the USB drive.
Connect the USB drive to your Windows CE-based device. Insert one end of the USB drive's USB cable into the device's USB port. Insert the other end of the cable into an available USB port on your personal computer. Wait for the Windows CE-based device to recognise the USB drive as connected hardware. The USB drive's device icon will appear on the Windows CE desktop or in the Windows Explorer file manager. You may then use the USB drive for storage or running files and applications.