Error Code Portal
MicrosoftWindows WinHTTPError code

12045

ERROR_WINHTTP_SECURE_INVALID_CA

Alternative forms: 0x00002F0D · 0x2F0D · ERROR_WINHTTP_SECURE_INVALID_CA

What does this code mean?

Code 12045 · An issue reported by Windows WinHTTP.

Official explanation · Original text

Indicates that a certificate chain was processed, but terminated in a root certificate that is not trusted by the trust provider (equivalent to CERT_E_UNTRUSTEDROOT).

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Error Messages (Winhttp.h) ↗

Creator: Microsoft and MicrosoftDocs contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source details · Original licenses and notices