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Reset-SmbServerConfiguration

Resets the Server Message Block (SMB) server configuration parameters to their default values.

Networking / Security · Risk: Critical · Documentation Verified

Last verified: 2026-10-26

Microsoft SmbShare reference: Resets the Server Message Block (SMB) server configuration parameters to their default values. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.

Reset-SmbServerConfiguration [-All] [-AnnounceComment] [-AnnounceServer] [-AsynchronousCredits]
 [-AuditClientCertificateAccess] [-AuditClientDoesNotSupportEncryption]
 [-AuditClientDoesNotSupportSigning] [-AuditInsecureGuestLogon] [-AuditSmb1Access]
 [-AutoShareServer] [-AutoShareWorkstation] [-CachedOpenLimit] [-DisableCompression]
 [-DisableSmbEncryptionOnSecureConnection] [-DurableHandleV2TimeoutInSeconds]
 [-EnableDirectoryHandleLeasing] [-EnableDownlevelTimewarp] [-EnableLeasing] [-EnableMailslots]
 [-EnableMultiChannel] [-EnableOplocks] [-EnableSMB2Protocol] [-EnableSMBQUIC]
 [-EnableStrictNameChecking] [-EncryptData] [-EncryptionCiphers] [-IrpStackSize] [-KeepAliveTime]
 [-MaxChannelPerSession] [-MaxMpxCount] [-MaxSessionPerConnection] [-MaxThreadsPerQueue]
 [-MaxWorkItems] [-NullSessionShares] [-OplockBreakWait] [-PendingClientTimeoutInSeconds]
 [-RejectUnencryptedAccess] [-RequestCompression] [-RestrictNamedpipeAccessViaQuic] [-ServerHidden]
 [-Smb2CreditsMax] [-Smb2CreditsMin] [-Smb2DialectMax] [-Smb2DialectMin]
 [-SmbServerNameHardeningLevel] [-TreatHostAsStableStorage] [-ValidateAliasNotCircular]
 [-ValidateShareScope] [-ValidateShareScopeNotAliased] [-ValidateTargetName] [-Force]
 [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob] [-WhatIf] [-Confirm]
 [<CommonParameters>]

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Required permissions

Use an account with the target resource permissions documented for Reset-SmbServerConfiguration. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.

Supported environments

Windows / SmbShare · Windows Server 2025 documentation; feature/module prerequisites apply

Parameters

-All: Resets all the SMB server configuration parameters to their default values.
-AnnounceComment: Resets the SMB server announce comment to its default value.
-AnnounceServer: Resets the SMB server announce server to its default value.
-AsJob: Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.
-AsynchronousCredits: Resets the asynchronous credits to its default value.
-AuditClientCertificateAccess: Resets the SMB over QUIC client access control audit events to its default value. > [!NOTE] > Devices running Windows 11 version 22H2 and earlier may not have access to this parameter.
-AuditClientDoesNotSupportEncryption: Resets auditing of the clients attempts to connect without encryption to the server to its default value.
-AuditClientDoesNotSupportSigning: Resets auditing of SMB clients that don't support signing to its default value.
-AuditInsecureGuestLogon: Resets whether to audit insecure guest logon attempts to its default value.
-AuditSmb1Access: Resets the auditing of SMB version 1 protocol behavior to its default value.
-AutoShareServer: Resets the automatic sharing behavior for default server shares to its default value.
-AutoShareWorkstation: Resets the automatic sharing behavior for default workstation shares to its default value.
-CachedOpenLimit: Resets the cache open file limit to its default value.
-CimSession: Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.
-Confirm: Prompts you for confirmation before running the cmdlet.
-DisableCompression: Resets the SMB compression behavior to its default value.
-DisableSmbEncryptionOnSecureConnection

Prerequisites

Windows with the SmbShare module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.

Security considerations

This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.

Examples

Example 1: Reset the unencrypted access behavior

Reset-SmbServerConfiguration -RejectUnencryptedAccess -Confirm:$false

This commands resets only the unencrypted access behavior to its default value without user confirmation. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.

Sources

https://github.com/MicrosoftDocs/windows-powershell-docs/blob/b7645dd8c687139b28e845119da30ec670526507/docset/winserver2025-ps/SmbShare/Reset-SmbServerConfiguration.md

https://learn.microsoft.com/powershell/module/smbshare/reset-smbserverconfiguration?view=windowsserver2025-ps

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