For you who want to re-format a USB Flashdisk using the Windows facility but keep failing you can use a free program “HP USB Disk Storage Format Tool“. This HP developed program is already popular in managing formatting USB Drive. This program is able to format all type’s of USB Drive, unless its already broken or undetected.
Even though this program is based for HP (Hewlett-Packard) but it is compatible with other brands. The other advantage of this program is its capability to re-format an USB Flasdisk bigger than 32 GB. This is one of a solution for all you who have problems for your USB