USB drives are probably the easiest and lightest way to move with your data from one place to another, but do allow the PCs you plug your drive into have good anti virus protection? Chances are that your tiny USB drive has become a haven for viruses and can infect any PC including your own.
USB Write Protector is a tiny portable software that shields your USB drive from pesky viruses and trojans by disabling the write functionality. This could be pretty useful when you want to only read data from the USB drive on public computers.
USB Write Protector is free to use and available in multiple languages including English, German, French, Chinese, Japanese, Spanish among others. The software is only 187Kb in size and can be easily stored in your portable USB/Flash Drive.