Insert the USB Thumb Drive or SD Card
Run CMD.exe as Administrator
DISKPART> select disk 1
Disk 1 is now the selected disk
DISKPART> List Disk (to verify selection (marked with asterisk to left of row)
*VERY Important Note: in my case since I only have a single internal hard disk in my laptop, the USB drive shows as disk 1, an 8GB stick. If you have more than one disk already installed/mounted on your PC, then modify the select statement accordingly to point to your target USB device. If you select the wrong disk you could wipe out all of the data on your PC.
DiskPart succeeded in cleaning the disk.
DISKPART>create partition primary
DiskPart succeeded in creating the specified partition.
DiskPart marked the current partition active.
DISKPART>format fs=fat32 quick
100 percent completed.
DiskPart successfully formatted the volume.
DiskPart successfully assigned the drive letter or mount point.
C:\> exit (to exit CMD window)