Operating system Boot mode change

[Syp_Her12]

The instructions were to restart the notebook, press ESC followed by F10 to enter the BIOS, go to SYSTEM CONFIGURATION and into the BOOT OPTIONS submenu, change SECURE bOOT <enabled> to <disabled>.

Then it said I had to save changes and exit (F10), and when it restarts it will give a warning message (see subject line), one has to type a 4-digit number followed by ENTER to complete the changes made, or ESC to cancel.  It just says additionally that for more information, I should visit http://www.hp.com/go/techcenter/startup .

Problem is that at this point, only ESC works, but I am not able to type in a 4-digit code, ENTER, or anything except the ESC button?

[Nal_NR]

Hi @Syp_Her12,

Welcome to the HP Support Community. 

I'd be happy to help you! 

To be able to answer you effectively, we need some information.

May I have the exact product name and number? Refer to this document for steps to find the product details. Do not share any of your personal information such as serial, phone number, email ID, etc.