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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Desktops
- Desktop Boot and Lockup
- HP unsupported adapter installed

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09-21-2023 07:23 AM
Hello. I have a HP - Pavilion 24" Touch-Screen All-In-One - Intel Core i5 - 12GB Memory - 256GB Solid State Drive which I purchased 4 years ago. It was working fine until last night I had to move my working desk to another spot. I unplugged my computer and when plugged into new outlet it wont start, It beeps 3 long and 4 short beeps, 5 times, then I get an error message Unsupported Adapter installed, The PC automatically shuts down in a few seconds yet there's a message at the bottom "Press ESC key for Startup Menu" When I press Esc key computer shuts down anyway,
Could it be that I just need to buy new adapter? What could be the issue?
09-27-2023 07:51 AM
Welcome to the HP support community.
I understand that you are getting beeps on the computer, I am glad to assist you.
Follow the steps mentioned in this HP document to fix the issue:- Click here
Keep me posted.
If this helps, please mark the public post as an accepted solution so that it benefits several others.
Cheers.
Sandytechy20
I am an HP Employee