IIRC you are running Fedora from a usb stick ? I can't say how much RAM is needed during coping big files and if it is needed, but it sounds to me like you running out of something, which could be RAM e.g. swap space. Do you got swap space or enough RAM, esp. you are running a full blown (???) Desktop from USB/RAM ? Tried sysrescueCD ? another point could be your old (?) external disk => bad sector, etc. did you checked it with smartctl, etc. ever ? My experiences are windows isn't that smart realizing bad disks. If you need a copy tool with verify under Windows, maybe this one: https://fastcopy.jp/en/ I used to checksum important files and keep that checksums, too. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx