How to Install Windows from USB on Lenovo Yoga Book 9 (Step-by-Step Guide)

Preparing for Windows Installation

• 💻 Ensure your Lenovo Yoga Book 9 is plugged in and charged before starting the installation process.
• 🔌 It's recommended to have a USB-C hub or adapter as the laptop only has USB-C ports.
• 🌐 An adapter for Ethernet and an Ethernet cable can be beneficial for stable internet during setup, though not strictly required.

Creating a Bootable Windows 11 USB Drive

• 📥 Download the Windows 11 ISO from the official Microsoft website, selecting the correct language and 64-bit version.
• 🛠️ Use Rufus (rufus.ie) to create the bootable USB drive from the downloaded ISO file.
• 💾 Copy the downloaded Wi-Fi driver for your specific Lenovo Yoga Book 9 model onto the USB drive after Rufus has finished creating the bootable media.

Accessing the Boot Menu and Installing Windows

• 🔌 Shut down the Lenovo Yoga Book 9 completely, wait 15 seconds, then plug in the bootable USB drive.
• 🚀 To access the boot menu, press the power button, then immediately and repeatedly toggle the camera switch.
• 🖱️ In the boot menu, select the USB device and proceed with the Windows 11 installation, agreeing to delete all data on the internal drive.
• 🗑️ During installation, delete all partitions on the internal disk (Disk 0) to ensure a clean install.

Installing Wi-Fi Drivers During Setup

• ⌨️ If Wi-Fi drivers are not detected, turn on the on-screen keyboard via the accessibility menu.
• 🔗 Press Shift + Fn + F10 to open the Command Prompt.
• 💻 Navigate to your USB drive (e.g., D:), find the Wi-Fi driver installer file (e.g., KSY.exe), and run it to install the drivers.
• 🌐 Once drivers are installed, connect to your Wi-Fi network.

Completing Windows Setup and Post-Installation

• 🔄 Allow Windows to download and install all necessary updates and drivers; this may take a significant amount of time.
• 🔑 Sign in with your Microsoft account (mandatory unless requirements were removed during ISO creation).
• 🔒 Set up your account PIN and configure privacy settings as desired.
• 🔌 Connect your external keyboard via USB-C if it's not detected wirelessly, or ensure Bluetooth drivers are installed.
• 🖥️ Adjust display settings by pressing Windows key + P and selecting 'Extend these displays' if needed.