FSEVENTSD-UUID is a temporary file created by MacOS, Mac OS X, and Linux operating systems. FSEVENTSD-UUID is listed as a hidden file and is generated when an external storage device is connected to the computer (for example, a SD card or a USB drive).

If the attached storage device has not been removed properly form the system, a FSEVENTSD-UUID multiplication problem may occur. FSEVENTSD-UUID must be removed using Windows system tools or using chkdsk tool.