Some of us want to hide their computers from the local network to be safe from hackers, to do that go to this directory
C:\Windows\System32
Write in the search (cmd) one right click on it and run it as admin
In the black page write (Net Config Server)
Look to the seventh line if it is sevrver hidden: yes so you are hidden if it is no you are not.
and if it was no and you want to hide your computer write this in the black page (net server config/ hidden:yes)

And if you read that
The command completed successfully message
So you are done to make sure that you hide your computer write net config server you will find the 7th line yes.