How to change the background of U disk directory

How do I change the background picture of the root directory of u disk? Here's how to solve the answer:

In the U disk root directory to create a new text document, renamed as "Desktop.ini" (also do not forget to change the extension), double-click Open, content input below the split line between the content:

[Extshellfolderviews]

{BE098140-A513-11D0-A3A4-00C04FD706EC}={BE098140-A513-11D0-A3A4-00C04FD706EC}

[{BE098140-A513-11D0-A3A4-00C04FD706EC}]

Attributes=1

Iconarea_image=sysandrew.jpg

[. ShellClassInfo]

Confirmfileop=0

Where andrew.jpg is the picture name, which is the picture you put in the "sys" folder.