Error occurred when backing up rootfs

[Z3r0Un1x]

I was installing Kali Linux subsystem on Windows 10 ver. 1709 (64-bit) following instructions from Kali.org ( https://www.kali.org/tutorials/kali-on-the-windows-subsystem-for-linux ) and get this error although the process is run as administrator privilege. Also, I use Python 3.6.3.
Input: python install.py rootfs_kalilinux_kali-linux-docker_latest.tar.gz
Output (with error):
[*] Probing the Linux subsystem...
[*] Default user is ZeroUnix at /home/ZeroUnix
[*] Reading /etc/{passwd,shadow,group,gshadow} entries for root and ZeroUnix...
[*] Removing leftover rootfs-temp...
[*] Backing up current rootfs to rootfs_ubuntu_xenial...
[*] Backing up current rootfs to rootfs_ubuntu_xenial...
[!] Failed to backup current rootfs: Command '['cmd', '/C', 'move', 'C:\\Users\\XXX\\AppData\\Local\\lxss\\rootfs', 'C:\\Users\\XXX\\AppData\\Local\\lxss\\rootfs_ubuntu_xenial']' returned non-zero exit status 1.