How to fix USB flash drives infected by Autorun virus(showing shortcut icon only)
Do not double click the USB flash drive, instead do a right click explore(double clicking makes the autorun virus replicate on background)
Type CMD to open command prompt then hit enter
Go to the drive letter of the USB flash drive (e.g. drive E), type E: then press enter
Command prompt will change to "E:\>" provided E is the drive letter of the USB flash drive
Type "attrib -h -r -s *.*" then hit enter (this will show your files which where hidden by the autorun virus infection.