Thanks for your email and contacting Kingston technical support.
Please try to use format utility from SD association to reformat your flash
drive on your PC. For downloading format utility, please refer to the link
below. Please note your data will be lost after reformat. Make sure you
back up important files before format.
If those files/folders still cannot be removed or reformatted, please
provide the product identification numbers on the USB connector. Kindly
refer to the picture below for an example. Meanwhile, please inform us
which country you are currently living in. We will provide further
solution and details about warranty claim if necessary.
For example: DT150/32GB 04274-303.A00LF 5V FE 3815816
Please include full mail history when you reply. We look forward to your
Thanks & Regards,
Kingston Technology Far East Co.
Toll free: 0800-666-200