This document is a user guide for Lenovo IdeaPad U150 laptop. It includes basic operation instructions, system configuration information, and important statements about the product. The document reminds users to read the manual carefully before using and provides information about accessing support services through the official Lenovo website. The document also introduces the appearance of the computer and various functions, and provides guides for using the internet, one-key rescue system, and troubleshooting. Lastly, the document includes information about getting help, maintenance, special statements, and after-sales service support system.