Hi @nacim
Welcome to the HP Forums!
Thank you for posting your query in this forum, it's a great place to find answers.
I reviewed your post and I understand that you want to know how to insert the SKU in bios.
Don’t worry, we will work together to resolve this issue and It’s a pleasure to assist you in this regard.
I would like to inform you that you cannot insert the SKU numbers in bios and this needs to be done at the HP service center. I recommend you to contact phone support to check the available service options for your computer.
Here is how you can get in touch with the phone support.
Open link: www.hp.com/contacthp/
Enter Product number or select to auto detects
Scroll down to "Still need help? Complete the form to select your contact options"
Scroll down and click on HP contact options - click on Get phone number.
Hope that answers your questions and you have a great day!
Take care.
Cheers!
The_Fossette
I am an HP Employee