Check the sticker on the bottom of the laptop
Check the label under the battery, if removable
Open Lenovo Vantage and look for device information
Press Windows + R, type msinfo32, and check System Model
Open Command Prompt and run wmic csproduct get name
Check BIOS/UEFI setup for the model name
Look at the original box or purchase receipt
Find the model on Lenovo’s support website using the serial number
Check the Lenovo service tag or serial number label
Search the model name in Device Manager or System Information