Before I know, I was shocked and afraid my flash bervirus after used on the Macbook because when it opened on a Windows computer there appeared several new folders and one file are: .fseventsd, .Spotlight-V100, .Trashes are all hidden attributes. Keep the folders and files I delete, then after plugged / reused on the Macbook, folders and hidden files appear again.
The above is not a problem, and it is something normal on Mac computers / OS X.
So every time when the flash is plugged in or used on Mac computers, be it Macbook, iMac, and other Macs (OSX), it will show several folders and files of hidden attributes: .fseventsd ,.Spotlight-V100, .Trashes.
In Mac / OS X the files and folders are associated with deleted indexing files, and the system file recording activity occurring on those drives
So the folders and files are not viruses.
There are many tools or Apps that can be installed on a Mac computer to automatically remove hidden folders and files when the flash is turned off, such as Eject For Windows , HiddenCleaner etc. you can try.
But if I think it's better to ignore it because it's something normal and small size does not interfere with the space / capacity of the flash.
