If you can plug the boot media to a windows PC, try removing the b7637 folder and then try upload again.
If you can plug the boot media to a windows PC, try removing the b7637 folder and then try upload again.
Hello Todd and Gr-R,
your suggestion about executing a file system repair didn't help. But I managed to create the bootable USB key and installed v7 today by booting from the V7 USB .
Thank you,
Andreas