Sometimes when you delete a file off of a memory card or flash drive, for some reason, the space isn't cleared. In this case you need to format memory card. This is very simple, if you just follow these simple instructions. Insert the memory card or flash drive into the computer via the needed port. After that, right click on the drive and click format. A new window will open and the option to
. "quick format" will appear. After that completes (approximately one minute) the card will be formatted.