Actually you don't not need the low level format tool to convert your drive to NTFS. You should be able to do that through the computer itself...
Please note that for files larger than 4GB, you’ll need to convert the files to NTFS.
We'll be glad to assist you in formatting your drive to NTFS. Please try the following steps:
First - Open My Computer
Right click on the SDHC drive
Select the Hardware Tab
Select the USB device
Click the Properties button
Select Optimize for Performance
Second - Right click on the Drive
Select the NTFS format option
Please let me know if it does not resolve your issue.
Thank You for choosing Patriot Memory.