Please check in the BIOS if you see those lines.
Shut down the Notebook and upon restarting keep tapping on F10 till you see System Configuration Menu ( BIOS )
If the issue persists please contact HP Support for Service Options
Click on this link - www.hp.com/contacthp/ and select your Country to get the Contact details for HP Support
If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.
KrazyToadI Am An HP Employee
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