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| NS_E_WMG_UNEXPECTEDPREROLLSTATUS | NS_E_WMG_COPP_SECURITY_INVALID |
NS_E_WMG_INVALID_COPP_CERTIFICATE
NS_E_WMG_INVALID_COPP_CERTIFICATE: what the result means
NS_E_WMG_INVALID_COPP_CERTIFICATE (0xC00D1051) means the certificate presented for the COPP protected-output path cannot be accepted.
What to capture
Capture the certificate validation result, the display adapter/driver that supplied it, the active output and the exact point at which protected-output initialization stops.
Focused verification
Recreate the COPP session after validating the same output path with a current display driver. Keep certificate validation separate from later COPP status or content-license failures.
Technical references
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