Disable SMB compression
- Policy ID
- Pol_DisableCompression
- Scope
- Computer Configuration
- Supported on
- At least Windows Server 2022, Windows 11
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Network › Lanman Workstation
Description
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).
Registry
ComputerHKEY_LOCAL_MACHINE
- DisableCompressionREG_DWORD