I have 64gb sd card use , its shows only 60gb free storage, how can i get extra 4 gb storage use, 64gb storage fully use

[Aashu_]

64 gb sd card storage, only 60gb user storage, how can i use extra 4gb hidden storage

 

[Saga Lout]

60 is as good as it's going to get on a 64GB disk - the rest disappears into a mathematical black hole. You should see how much you lose off a TB disk.