Can't instal Diablo LoD expension

I don't understand what to do with this message:
"The file "C:/Users/Public/Desktop/Diabli II - Lord of Destruction.Ink" is read only and cannot be overwritten. Please try installing to a different location."
... I unistaled and deleated everything related to Diablo II to instal it back and every time I get this message... I'm about to set my computer on fire... Any of you have better solution? :(

Did you try to turn off read only flag for "Diabli II - Lord of Destruction.Ink" ?

I don't know it seems like I dont have any file name "Diablo II - Lord of Destruction.Ink"