Check the label on the bottom of the laptop
Check the label under the battery if it is removable
Look on the original box or receipt
Open System Information on Windows
Check Settings > System > About on Windows
Open Command Prompt and run `wmic csproduct get name`
Open Command Prompt and run `systeminfo`
Use the manufacturer support app
Check the BIOS or UEFI setup screen
Look for the model name on the keyboard bezel or palm rest
Check the device sticker near the screen hinge
Find it in macOS by clicking the Apple menu > About This Mac
Check Linux system details with `sudo dmidecode -s system-product-name`