Check the sticker on the bottom of the laptop
Check the label under the battery if the battery is removable
Look on the box or purchase receipt
Press Windows + R, type msinfo32, and check System Model
Open Command Prompt and run wmic csproduct get name
Open HP Support Assistant and view the device information
Check BIOS/UEFI by restarting and pressing Esc or F10
Check the HP website using the serial number
Look in Windows Settings under System > About
Check the product label near the keyboard or palm rest