SSL & TLS Hardening Script
Visually configure SCHANNEL registry keys. Includes auto-backups, smart OS detection, and .NET Framework strong crypto enforcement.
Enforce .NET Framework Strong Crypto
Crucial for older apps. Forces .NET to use the OS Default TLS (TLS 1.2) instead of falling back to weak protocols.
Windows Server Hardening FAQ
These legacy protocols contain known vulnerabilities (like POODLE). They are deprecated by the IETF and banned by PCI-DSS standards.
If you run older SQL Native Clients, legacy APIs, or unpatched .NET applications, they may instantly lose database/network connectivity. Test in staging first.
Even if Windows natively disables TLS 1.0, older .NET Framework apps (v4.x) are hardcoded to prefer legacy protocols. The `SchUseStrongCrypto` registry key forces them to respect the OS default.
Yes! The V2 script executes a `reg export` command immediately, saving your current SCHANNEL state to `C:\schannel-backup.reg` before applying changes.
TLS 1.3 is only natively supported on Windows Server 2022 and Windows 11. Our generated script features OS detection and will safely skip TLS 1.3 on unsupported older OS versions.
No. This script hardens Protocols. To achieve perfect PCI-DSS compliance, you must also disable weak ciphers (RC4, 3DES) and reorder Cipher Suites via Group Policy or tools like IIS Crypto.
Yes. Changes to the SCHANNEL registry keys in Windows only take effect after a full system restart. The script will prompt you to reboot at the end.
This DWORD value instructs the OS not to negotiate the protocol unless an application explicitly requests it. Our script correctly toggles this alongside the "Enabled" value.