If your USB flash drive is not copying files, format your file type to NTFS. However, you may also need to gain administrator permission to fix the issue.

How to connect an external USB drive to your PlayStation 5 console, and move games and apps between internal and external PS5 storage.

Is there a way to copy the contents of a laptops hard drive onto a usb storage drive? I cannot boot into windows xp at any level. I am able however to enter setup and boot mini-xp from a disk. TIA ...