USB Drive Protector ++

USB Drive Protector ++ is a small and portable application designed to protect USB flash drives against unauthorized use. It targets all types of users, even those with minimal experience in such tools.
Since installation is not a prerequisite, you can store USB Drive Protector ++ anywhere on the hard drive and run it directly.
Otherwise, you can copy the app to a USB flash drive or similar storage unit, and run it on any computer. Therefore, you can carry the tool with you whenever you're on the move.
The interface of the program is represented by a common window with a simple layout. There are two methods available for protecting a flash drive: you can either put a dummy file inside a folder as a decoy, or modify Windows Registry entries.
So, you can fill free disk space by using a single or multiple files, with automatic or custom sizes. It is also possible to assign a name to the dummy file or make the app do this randomly.
USB Drive Protector ++ does not put a strain on the computer's overall performance, as it uses a very low amount of CPU and system memory. It has a good response time and may take a while to apply the protection status to a flash drive. No error dialogs have been shown in our tests and the tool did not hang or crash. On the downside, USB Drive Protector ++ has not been updated for a pretty long time.