Policy

Disable SMB compression

This policy controls whether the SMB client will disable (completely prevent) traffic compression. If you enable this policy setting, the SMB client will never compress data, irrespective of other policies (such as the 'Use SMB compression by default' policy or per-share property). If you disable or do not configure this policy setting, the SMB client may compress traffic (depending on a combination of other policies and conditions).

Policy
Pack Microsoft Windows
Category Network / Lanman Workstation
Policy ID 4e4468c89e8a
Internal name Pol_DisableCompression

Registry

Copy registry mappings

HKLM\Software\Policies\Microsoft\Windows\LanmanWorkstation\DisableCompression (enabled) = 1
HKLM\Software\Policies\Microsoft\Windows\LanmanWorkstation\DisableCompression (disabled) = 0

Policy notes

This policy controls whether the SMB client will disable (completely prevent) traffic compression. If you enable this policy setting, the SMB client will never compress data, irrespective of other policies (such as the 'Use SMB compression by default' policy or per-share property). If you disable or do not configure this policy setting, the SMB client may compress traffic (depending on a combination of other policies and conditions).

Related policies

Alternative Port MappingsAudit insecure guest logonAudit server does not support encryptionAudit server does not support signingBlock NTLM (LM, NTLM, NTLMv2)Block NTLM Server Exception ListCipher suite order