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lowWindowsotherlearn_purview · Sep 12, 2026

Windows 11 TPM AIK Enrollment Fails – HTTP 400 / 0x80190190 – Intel PTT - Microsoft Q&A

Users are encountering issues with TPM AIK enrollment in Windows 11, receiving HTTP 400 errors despite a functioning TPM and Secure Boot. This issue impacts administrative and developer audiences.

“I’m experiencing a Windows TPM/AIK attestation failure despite TPM 2.0 and Secure Boot both functioning normally. System: ASRock B860 Pro-A WiFi Intel Core Ultra 7 265F Windows 11 Home BIOS 3.32 / UEFI Intel PTT / TPM 2.0 TPM firmware: 700.19.1011.2289 Secure Boot: Enabled Windows reports the TPM as present, ready, e…”
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Security
endpoint_security
Audience
admindeveloper
Environment
on_premises
Classification confidence: 85%
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Windows 11 TPM AIK Enrollment Fails – HTTP 400 / 0x80190190 – Intel PTT - Microsoft Q&A | 365Forge