I copy frequently TV films from my internal disk to an usb connected external disk. This is ok for let's say a bunch of 20GB. Then there occurs a situation where one film is not copied and the system has to be shut down and rebooted again to continue. But the film, which blocked the system, can not be copied again. But it can be handled with windows 8.1. Is there a cache or other "memory system" in Fedora (i.e. F28), which can be deleted, so hat Fedora can copy this blocking film again? I have a similar problem in Windows 8.1, but his is solved, when I reboot Windows.

My system: Acer Laptop Aspire E15 E5-571G, cheap USB adapter to an external disk (old internal disk used as external disk with usb adapter). Windows 8.1 on the laptop internal disk, F28 on an USB 3.0 32GB Flash medium.