I recently purchased a SanDisk Cruzer CZ36 16GB USB 2.0 flash drive. The flash drive was formatted as FAT32 from the package. I will need to store files that are larger than 4GB on this flash drive, so I decided to reformat the flash drive as NTFS. (Also, the drive had some SanDisk SecureAccess software preloaded on it that I don't want.) On Windows 7, I right-clicked the drive and selected Format. I did a full format by unchecking the "Quick format" box.
After the format, however, Windows tells me that the drive is not completely empty. If I right-click on the drive and select Properties, Windows gives me this infomation:
Type: Removable Disk File system: NTFS Used space: 96,169,984 bytes 91.7 MB Free space: 15,912,419,328 bytes 14.8 GB Capacity: 16,008,589,312 bytes 14.9 GB
Why is this the case, since I just formatted the drive? Is this to be expected? Or are some files still lingering on the drive?
When I open the drive on Windows Explorer, no folders or files appear, even when I tell Windows to show hidden folders and files. But, still, I find it worrisome that there is 91.7 MB some how being used on this "empty" drive.