Policy

Turn off encryption support

Windows 11 25H2

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Policy overview

Key metadata and intent for this policy.

ClassUser
CategoryWindows Components > Internet Explorer > Internet Control Panel > Advanced Page
Supported onAt least Internet Explorer 8.0

This policy setting allows you to turn off support for Transport Layer Security (TLS) 1.0, TLS 1.1, TLS 1.2, Secure Sockets Layer (SSL) 2.0, or SSL 3.0 in the browser. TLS and SSL are protocols that help protect communication between the browser and the target server. When the browser attempts to set up a protected communication with the target server, the browser and server negotiate which protocol and version to use. The browser and server attempt to match each other’s list of supported protocols and versions, and they select the most preferred match. If you enable this policy setting, the browser negotiates or does not negotiate an encryption tunnel by using the encryption methods that you select from the drop-down list. If you disable or do not configure this policy setting, the user can select which encryption method the browser supports. Note: SSL 2.0 is off by default and is no longer supported starting with Windows 10 Version 1607. SSL 2.0 is an outdated security protocol, and enabling SSL 2.0 impairs the performance and functionality of TLS 1.0.

Internal name
Advanced_SetWinInetProtocols
Policy ID
91d1bd612866
Elements
1

Registry values

How enabled and disabled states update the registry.

No explicit registry values are set for enabled or disabled states.

Policy elements

Inputs and configuration options exposed by this policy.

ElementTypeRegistry mappingConstraints & behavior
Secure Protocol combinations
ID Advanced_WinInetProtocolOptions
enum
HKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\SecureProtocols
Type REG_DWORD
Options: Use no secure protocols (0), [Obsolete] Only use SSL 2.0 (8), Only use SSL 3.0 (32), [Obsolete] Use SSL 2.0 and SSL 3.0 (40), Only use TLS 1.0 (128), [Obsolete] Use SSL 2.0 and TLS 1.0 (136), Use SSL 3.0 and TLS 1.0 (160), [Obsolete] Use SSL 2.0, SSL 3.0, and TLS 1.0 (168) … +29 more

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