Since Windows 10, microsoft remove the support for Samba 1, the problem is that I still have that old NAS who only support SMB1, so here’s the error shown:

You can't connect to the file share because it's not secure. This share requires the obsolete SMB1 protocol, which is unsafe and could expose your system to attack.
Your system requires SMB2 or higher. For more info on resolving this issue, see: https://go.microsoft.com/fwlink/?linkid=852747

And the solution is realy easy.

1. Open control panel
2. Search for Turn Windows features on or off
3. Scroll down to SMB 1.0/CIFS File Sharing Support and activate the checkbox to activate que option
4. Restart and you’re done