Cannot format disc

[Zagrys de Lange]

I got a 64g f/disc but when I try to format it msg "Windows unable to complete format"

 

[Mike_Tech]

This is a USB stick yes? Are you selecting the NTFS format?

 

[Paul NZ]

whats f/dsk?? floppy disk?

 

[rockie_]

If you have used it in a cell phone , first format it there .

if it is a microSD card .