Windows 10 – SMB Guest access denied by default

Posted on July 6, 2020 by

Windows 10 now, by default, denies an SMB client from connecting to an SMB server with “guest access”.  See:

https://support.microsoft.com/en-us/help/4046019/guest-access-in-smb2-disabled-by-default-in-windows-10-and-windows-ser

The temporary fix is to change the registry to allow guest account access

With windows regedit I set :
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters
“AllowInsecureGuestAuth”=dword:1
(by default this is set to “0”)

 

 

 

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