No, it's useless. One precaution: do not remove it when PREDATOR's icon in the taskbar is red. The red icon indicates that PREDATOR is writing on the key and it is better not to remove it at that time.
Warning: if you put your own files on the key and if these files are opened by other applications, then you must close them before removing the key, even if the PREDATOR icon is not red. If you do not, you risk losing data that you entered with these other applications. The best way to avoid this is to have a specific key for PREDATOR.
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