Format usb flash drive

Hi looking for a good program to format my USB flash drive.
Windows 10 won't recognise my flash drive it knows it's there but it's not showing up in drives I used the flash drive in my zgemma and the zgemma changes the partition in some way so PC won't recognise it now.

I used a low level format tool the last time it happened and it worked but it also deleted the partition so don't want to make the same mistake again I tried cc cleaner but to be honest I don't really know how to do it with that so I would like to use a free simple tool to get the job done if anyone can help it would be much appreciated thanks.

I use RmPrepUSB but I'm not sure it fits any reasonable definition of "simple". Every time I use it I fear I'll set a wrong parameter and wipe out something critical. But on the other hand, I never have wiped out anything. It has never caused problems (if you discount worry).

Hi pokeefe0001 downloaded it hadn't a clue just winged it lol but it worked a treat thanks very much your a star.