I already managed to solve it.
Thank you for helping me, i understand now about what was wrong
The bug was that node-network was not connecting to the shared folder and the copy command of the cmd did not work.
Start testing the "Net Use" command in node-red and register the shared folder there:
net use \ sharedfolder / u: User password
In the end if it is important to re-enter the password
Then I checked with net use that node-network was connected to that folder and now the copy command already worked:
copy c:\one\two\three.mp4 \sharedfolder\newfolder
Now i can use the node FS OPS to work with files too
