How to fix "You can't access this shared folder" when mapping network drive on Windows 11

Опубликовано: 12 Май 2026
на канале: Automation Avenue
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How to fix: "You can't access this shared folder because your organization's
security policies block unauthenticated guest access. These
policies help protect your PC from unsafe or malicious devices on
the network. " and

"System error 3227320323 has occured" and

"The mapped network drive could not be created because the followint error has occured: An extended error has accured"

when you try to map network drive on Windows 11.

Registry path that has to be changed: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters

Registry DWORD 32-bit key value = AllowInsecureGuestAuth

Official Microsoft documentation - https://techcommunity.microsoft.com/b...

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