netrw bug? cannot copy marked file to target

Question

When I try to do the following on Windows 10:

1. go to a directory, set it as the target directory using mt
2. go to a different directory, mark a file in that directory using mf
3. use mc to copy the file to the target directory

I get the following error:

(netrw) tried using g:netrw_localcopycmd<C:\WINDOWS\system32\cmd.exe>; it doesn't work!

Is there a fix to this? Or am I doing it wrong?

EDIT:

The output of :echo g:netrw_localcopycmd is C:\WINDOWS\system32\cmd.exe