You can enable the legacy SMB client to access network devices using SMBv1 protocol via the Control Panel (Control Panel -> Programs and Features -> Turn Windows features on or off -> SMB 1.0 / CIFS File Sharing Support -> SMB 1.0 / CIFS Client). In addition, you can access the features installation dialog by running the optionalfeatures.exe command.
If you use anonymous access to connect NAS or other computers, you need to enable the insecure guest logon policy. In Windows 1803/1709 it blocks access to shared network folders over the SMB 2.0 protocol under an anonymous (guest) account. To do this, in the Windows 10 Local Policy Editor (gpedit.msc), enable the Enable insecure guest logons policy in the GPO section: Computer Configuration -> Administrative templates -> Network -> Lanman Workstation.