My folders having data are converted into 1k

when i had entered my pen drive into my friend's pc , all the data present in it were converted into 1kb shortcut files.
when i double clicked on a file , it is showing that " the item 'roaqux.exe' that this shortcut refers to has been changed or moved , so this shortcut will no longer work properly. Do u want to delete this shortcut? "
also by clicking properties of that file it is showing general,shortcut,compatibility,security,details tab but only shortcut tab is accessible and the location is not correct drive & target is ( H:\roaqux.exe H:Pass ) but my drive is J: drive.
by scaning that drive via antivirus i can see the files and folders but can't able to access that file .pls help.