EDV:GFS
Windows
On Windows 10 you have to enable the version 1 of the SMB protocol by opening "Turn Windows features on or off" and selecting "SMB 1.0/CIFS File Sharing Support". (Bzw. "UnterstĆ¼tzung fĆ¼r die SMB 1.0/CIFS-Dateifreigabe" in der Box "Windows-Features", die Ć¼ber "Programme und Features" in der Systemsteuerung aufgerufen werden kann.) If the feature is not available in the features list you have to open the "PowerShell" as Administrator. There you have to install it with "Get-WindowsOptionalFeature āOnline āFeatureName SMB1Protocol" and activate it with "Enable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol" (Microsoft Docs).
If it's not possible to download the files from the fileserver you probably have to check this discussion: "You can't access this shared folder because your organization's security policies block unauthenticated guest access"