Copy Files from Windows 10 to wsl

Method 1
reboot( close wsl window and reopen )

Method 2 – Windows System Drive as a Mount point

Windows Sub-System for Linux provides you access to the Windows 10 system drive by mounting the C:\ . On Linux  if you go to you root directory and list all directories, then you will notice a /mnt/c/ which is Windows 10 C:\ mounted on Linux