• ×
    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

‎05-25-2026 09:58 AM

HP Recommended
Product: 32 inch all in one
Operating System: Microsoft Windows 11

HI

 

I'm having problems with my HP 32 inch all in one

 

When I turn on I get the message in red

 

Secure Boot Violation Invalid signature detected check secure boot policy in setup

 

Then in blue I had boot device not found Hard Disk (3F0) but it wont let me access F2 system diagnostics now

 

I did get into F2 once and all checks ran ok

 

I've also had CMOS reset (502)

 

It is out of warranty

 

It is hot today in the UK so I'll let it cool down this evening and have another go

 

Anyone with similar experience?

 

Any advice appreciated

Reply
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>.