I installed Windows 10 as Gnome Boxes guest (Fedora 30).
On virtual Windows I did all the stuff from: https://www.spice-space.org/download.html (spice-guest-tools-latest.exe, spice-webdavd-x64-latest.msi).
In Boxes I shared folder: Public. In my virtual Windows I see the folder in Windows File Explorer in Network Drive (Z:) but when I try copy some file from Network Drive (Z:) > Public to another file folder in virtual machine (for exapmle: Downloads), the file is copied very slowly and after a while Windows show error: 0x800700DF: The file size exceeds the limit allowed and cannot be saved.
How to increase the speed of copying files between shared folders (Fedora -> Windows)? And how to eliminate the copying error?