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Reset-SmbClientConfiguration

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

Last verified: 2026-10-26

Microsoft SmbShare reference: Resets the Server Message Block (SMB) client 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-SmbClientConfiguration [-All] [-AuditInsecureGuestLogon]
 [-AuditServerDoesNotSupportEncryption] [-AuditServerDoesNotSupportSigning] [-BlockNTLM]
 [-CompressibilitySampling] [-ConnectionCountPerRssNetworkInterface] [-DirectoryCacheEntriesMax]
 [-DirectoryCacheEntrySizeMax] [-DirectoryCacheLifetime] [-DisableCompression] [-DormantFileLimit]
 [-EnableBandwidthThrottling] [-EnableByteRangeLockingOnReadOnlyFiles] [-EnableLargeMtu]
 [-EnableLoadBalanceScaleOut] [-EnableMailslots] [-EnableMultiChannel] [-EnableSMBQUIC]
 [-EncryptionCiphers] [-ExtendedSessionTimeout] [-FileInfoCacheEntriesMax] [-FileInfoCacheLifetime]
 [-FileNotFoundCacheEntriesMax] [-FileNotFoundCacheLifetime] [-ForceSMBEncryptionOverQuic]
 [-InvalidAuthenticationCacheLifetime] [-KeepConn] [-MaxCmds] [-MaximumConnectionCountPerServer]
 [-OplocksDisabled] [-RequestCompression] [-RequireEncryption] [-SessionTimeout]
 [-SkipCertificateCheck] [-Smb2DialectMax] [-Smb2DialectMin] [-UseOpportunisticLocking]
 [-WindowSizeThreshold] [-Force] [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob]
 [-WhatIf] [-Confirm] [<CommonParameters>]

Required permissions

Use an account with the target resource permissions documented for Reset-SmbClientConfiguration. 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 client configuration parameters to their default values.

-AsJob

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.

-AuditInsecureGuestLogon

Resets whether to audit insecure guest logon attempts to its default value.

-AuditServerDoesNotSupportEncryption

Resets whether to audit when a server doesn't support encryption to its default value.

-AuditServerDoesNotSupportSigning

Resets whether to audit when a server doesn't support message signing to its default value.

-BlockNTLM

Resets whether to block NT LAN Manager (NTLM) authentication 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.

-CompressibilitySampling

Resets the compression sampling behavior to its default value.

-Confirm

Prompts you for confirmation before running the cmdlet.

-ConnectionCountPerRssNetworkInterface

Resets the SMB connection count for each RSS network interface to its default value.

-DirectoryCacheEntriesMax

Resets the maximum cache entries that can be in the directory cache to its default value.

-DirectoryCacheEntrySizeMax

Resets the maximum size of directory cache entry value to its default value.

-DirectoryCacheLifetime

Resets the directory cache lifetime to its default value.

-DisableCompression

Resets the SMB compression behavior to its default value.

-DormantFileLimit

Resets the dormant file limit to its default value.

-EnableBandwidthThrottling

Resets the bandwidth throttling behavior to its default value.

-EnableByteRangeLockingOnReadOnlyFiles

Resets the enabled byte range locking behavior on read-only file to its default value.

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

Reset-SmbClientConfiguration -EnableLargeMtu -Confirm:$false

Sources

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

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

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