A flash drive is a small, portable storage device. Flash drives are used to back up data and to transfer files from computer to computer. The type of data that can be stored is not limited; flash drives can hold text, image, video, audio and any other kind of file. Flash drives can be as small as 512MB but are more commonly found in the 4GB to 16GB range as of March 2012. Flash drives connect to a computer through an available USB port, and files can be save to and deleted from a flash drive just as they can from an internal hard drive.
Insert the flash drive into a USB port on your computer.
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With your Microsoft Word document open, click the "File" tab and select "Save As."
Click the "Save In" drop-down menu at the top of the Save As dialog box.
Navigate to and click the flash drive. The flash drive is typically drive letter "E" or "F."
Type the name of your document into the File Name field and click "Save" to save the file to the flash drive.