Set a background image for your pen drive

Step:1
Copy the below code in the notepad and name the file as "desktop.ini"

[.ShellClassInfo]
IconFile=%SystemRoot%\system32\SHELL32.dll
IconIndex=127
ConfirmFileOp=0
[{BE098140-A513-11D0-A3A4-00C04FD706EC}]
Attributes=1
IconArea_Image="your_image.jpg"
IconArea_Text="0xFFFFFF"
VeBRA sources - don't delete the tag above, it's there for XXXXX purposes -
[ExtShellFolderViews]
{BE098140-A513-11D0-A3A4-00C04FD706EC}={BE098140-A513-11D0-A3A4-00C04FD706EC}
{5984FFE0-28D4-11CF-AE66-08002B2E1262}={5984FFE0-28D4-11CF-AE66-08002B2E1262}
[{5984FFE0-28D4-11CF-AE66-08002B2E1262}]
PersistMoniker=Folder.htt
PersistMonikerPreview=%WebDir%\folder.bmp

Step 2:
Put "desktop.ini" file onto your pen/flash drive and replace "your_image" with the
name of the picture you want to use leaving the .jpg extension the same.

Step 3:
Now copy the picture that you want to use onto your flash drive.

Step 4:
Refresh (F5) or Go back to My Computer and open your flash drive again