how to format my sd card. i able to open & copy files but can't delete it or format

[verma001]

i need help, how to format with 'cmd' command or by any computer method

 

[bobmanuk]

if windows isnt able to format it you most likely have a bad sd card.

you could try minitool partition wizard FREE delete the partition from the SD card and then create a new one

if you really must use CMD, check out this very well documented guide from HowToGeek