Turn off IDN encoding
- Policy ID
- DNS_IdnEncoding
- Scope
- Computer Configuration
- Supported on
- At least Windows Server 2012, Windows 8 or Windows RT
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Network › DNS Client
Description
Specifies whether the DNS client should convert internationalized domain names (IDNs) to Punycode when the DNS client is on non-domain networks with no WINS servers configured.
If this policy setting is enabled, IDNs are not converted to Punycode.
If this policy setting is disabled, or if this policy setting is not configured, IDNs are converted to Punycode when the DNS client is on non-domain networks with no WINS servers configured.
Registry
ComputerHKEY_LOCAL_MACHINE
- DisableIdnEncodingREG_DWORD