• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Join the HP Community Solve‑a‑thon | Help Others & Share Your Solutions | Live on Zoom | 2:30 PM to 2:30 AM IST | Every Wednesday Click here to know more
Locked

‎07-02-2026 05:25 AM - edited ‎07-02-2026 05:32 AM

HP Recommended
Product: HP ProBook 450 G5 Notebook PC
Operating System: Microsoft Windows 10 (64-bit)

Per HP document ish_13070353-13070429-16 ("HP Business PCs – Prepare for new Windows Secure Boot certificates"), HP provides a manual update solution for Commercial PCs outside of service life. I request this solution for my device, which meets the stated requirements:
• Product: HP ProBook 450 G5, baseboard 837D
• BIOS: Q85 Ver. 01.31.00 Rev.A (latest published; released 2025-02-11)
• OS: Windows 10 Enterprise 22H2, enrolled in the Extended Security Updates (ESU) program
• Hardware: meets Windows 11 system requirements (8th-gen Intel Core, TPM 2.0)
• Secure Boot: enabled and healthy
Current certificate state: the Windows UEFI CA 2023 is already applied to the UEFI DB and the boot manager is 2023-signed. The remaining updates — KEK 2023, Microsoft UEFI CA 2023 (3P), and Option ROM UEFI CA 2023 — are blocked by Windows servicing with Event ID 1802, SkipReason KI_7 (known HP firmware issue per Microsoft KB5083344), BucketConfidenceLevel "Temporarily Paused". Since the 450 G5 is not on the supported-platforms BIOS list, no firmware update will lift this block, so the manual EOSL process is the applicable path.
Please advise the procedure and provide the necessary update packages.

Category:
2 people had the same question
1 REPLY 1

‎07-02-2026 12:41 PM

HP Recommended

Hi Dobrin,

 

Good evening ! Thank you for posting in the HP Support Community !

 

I sent you a private message (PM) with information how to approach this matter.

If you happen to have any follow up questions about this, please reply back to me via PM.

Your FEEDBACK is important. Use the interactive buttons below and let me know if the post helps ;
*** HP employee *** I express personal opinion only *** Joined the Community in 2013
Was this reply helpful? Yes No
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.
-->