COMMAND EVERYTHING.
Disables the Elliptic Curve Cryptography (ECC) cipher suites available for TLS(Transport Layer Security) for a computer.
Networking / Security · Risk: Critical · Documentation VerifiedLast verified: 2026-10-26
Microsoft TLS reference: Disables the Elliptic Curve Cryptography (ECC) cipher suites available for TLS(Transport Layer Security) for a computer. 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.
Disable-TlsEccCurve [-Name] <String> [-WhatIf] [-Confirm] [<CommonParameters>]Use an account with the target resource permissions documented for Disable-TlsEccCurve. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Windows / TLS · Windows Server 2025 documentation; feature/module prerequisites apply
-Confirm-Name (required)-WhatIfWindows with the TLS module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
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.
Disable-TlsEccCurve -Name curve25519This will disable the ECC Curve curve25519. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.
https://learn.microsoft.com/powershell/module/tls/disable-tlsecccurve?view=windowsserver2025-ps
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