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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
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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 Operating Systems and Recovery
- invalid or missing product information

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05-08-2020 03:30 PM
I reviewed your post and I understand that you are getting missing product information error on startup.
Don’t worry, I assure you I will try my best to get this sorted.
Have you made any hardware changes on the computer?
Meanwhile, I recommend you follow the steps in the below article and check if it helps.
https://support.hp.com/in-en/document/c01443496
Let me know how it goes and you have a great day!
P.S: Welcome to the HP Support Community 😊
If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!
Cheers!
Stay Home – Stay Safe
The_Fossette
I am an HP Employee
05-08-2020 03:54 PM
No Hardware changes were made seemed to happen after update and computer had to restart
once it restarted error message "invalid or missing product information" appeared
came to this site found same instructions below to find CT Number but it is blank no numbers
05-09-2020 09:00 AM
If the steps I shared didn't do the trick, it would confirm a hardware malfunction and you may want to contact HP to have the device repaired.
Here is how you can get in touch with support.
1)Click on this link – www.hp.com/contacthp/
2)Select the product type.
3)Enter the serial number of your device or select let HP detect your product option.
4)Select the country from the drop-down.
5)You should see the HP phone support number or Chat option listed.
Cheers!
The_Fossette
I am an HP Employee