From the right edge of the screen, swipe left to display the charms menu.
Enter file explorer into the search field.
From the search results (located below the search field), tap File Explorer.
From File Explorer, tap and hold the appropriate removable storage drive (e.g. Secure Digital storage drive (D:)) for approximately 1 second then release.
From the "Format" screen, ensure that the following options are configured as desired:
Allocation unit size
Enabled when a check mark is present.
Quick format removes files from the memory card but it doesn't scan for bad sectors. The option should only be enabled when the memory card has been formatted previously and you're certain the card is not damaged.
Depending on card capacity, Quick format may take between 15 seconds and 2 minutes to complete. If Quick format isn't selected, the process takes longer (e.g., 20 minutes for an 8 GB card).
Click Start (located at the bottom).
From the "WARNING: Formatting will erase ALL data on this disk?" prompt, click OK to confirm.
If presented with the "Format Complete" prompt, click OK.