How to Delete Files on USB XTAF GUI v44?

[God of Eternity]

I placed a saved game on my USB drive and placed the save on the computer so that whenever I want to refresh the data, I could just delete the save on the USB and replace it with the save on my PC. The problem is, whenever I do this, it apparently uses up 0.3 GB each time. I delete the folders on USB XTAF, but I don't believe they're actually being deleted from the USB.

Anyone know how to delete these save files from my USB? I cannot find the files anywhere but on XTAF, and it's obviously not deleting the data.

[actualmanx]

try horizon, 360 revolution, party buffalo.
one of them will delete it i dont use xtaf anymore as there are much better programs ^^^