Hello alisondmurray
Welcome to ToolsLib Forum ~
I'm not quite sure what you are asking? If I have to guess are to trying to say how to safely remove USB?
To safely remove an USB please see this PC Magazine article https://www.pcworld.com/article/254868/safely_remove_usb_drives_just_by_unplugging_them.html
Hope this helps.
Warmest Regards.
Julie