Cipher suite order

Policy ID
Pol_CipherSuiteOrder
Scope
Computer Configuration
Supported on
At least Windows Server 2016, Windows 10
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Network › Lanman Workstation

Description

This policy setting determines the cipher suites used by the SMB client.

If you enable this policy setting, cipher suites are prioritized in the order specified.

If you enable this policy setting and do not specify at least one supported cipher suite, or if you disable or do not configure this policy setting, the default cipher suite order is used.

SMB 3.11 cipher suites:

AES_128_GCM
AES_128_CCM
AES_256_GCM
AES_256_CCM

SMB 3.0 and 3.02 cipher suites:

AES_128_CCM

How to modify this setting:

Arrange the desired cipher suites in the edit box, one cipher suite per line, in order from most to least preferred, with the most preferred cipher suite at the top. Remove any cipher suites you don't want to use.

Note: When configuring this security setting, changes will not take effect until you restart Windows.

Options

  • Cipher suites:

Registry

ComputerHKEY_LOCAL_MACHINE
  • CipherSuiteOrderREG_MULTI_SZ

Other policies in the same category

View all policies in this category (19)