Lenovo G450/G550 User Manual

About this manual

This handbook covers important safety information, basic operation instructions, and system configuration for the Lenovo G450 and G550 laptops. It includes guidance on using the power adapter, battery, touchpad, keyboard, special keys, and connecting external devices.

Additional sections describe network setup, the OneKey Rescue System, troubleshooting FAQs, and how to upgrade or replace components such as the hard disk, memory, and optical drive. Appendices provide warranty details, regulatory notices, and a list of customer‑replaceable units. This manual is written in Swedish.

What's inside

• Important Safety Information
• Learn to Know Your Computer
• Basic Operations
• Using the Network
• OneKey Rescue System
• Troubleshooting
• Upgrading and Replacing Components
• Warranty and Service Information
• Regulatory Notice
• Features and Specifications

Specifications

Frequently asked questions

What safety precautions should I follow when using the laptop?

Read the important safety information, avoid using the laptop on soft surfaces, keep ventilation clear, and use only the supplied power adapter and battery.

Why does the hard‑disk capacity shown in the operating system differ from the nominal capacity?

The operating system uses a binary base (1 GB = 1024 MB) while the manufacturer uses a decimal base (1 GB = 1000 MB), causing the displayed capacity to be about 93 % of the nominal size.