Debian Bookworm: Install Debian 12.0 Dual Boot with preinstall windows 11 home on fresh Lenovo Ideapad Gaming 3

Preparation using windows 11 to create installation CD

1. Download CD 1 debian-12.0.0-amd64-netinst.iso from https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/
2. Insert blank DVD (file size exceed CD size)
    
3. Right click file and select Windows Disk Image Burner.

Disable Secure Boot

1. From windows 11, press Shift + Restart
2. Select Troubleshoot -> Advaned Options -> UEFI Firmware Settings -> Security
3. Find Secure Boot and change it to Disable
4. Save configuration

To check status Secure Boot from windows 11, use system information, and find Secure Boot State. Secure Boot State must be Off to make sure Debian installation work perperly.

Restart to DVD and follow Graphic Installation guide.