Briefly,
1, Download the ISO image and check the MD5 hash;
2, Write the image to a USB key using UUI (Universal USB Installer);
3, Boot the computer using the USB key;
Note: Be sure to disable UEFI secure boot and enable compatibility support module (CSM).
4, You should be able to see the Live interface, if you did correctly;
Note: You can backup your data and/or edit your disk partition pattern in the Live mode, if necessary. You can also install LD on a GPT disk by creating a BIOS Boot partition.
5, Run the setup program by double-clicking the icon on the desktop, and follow the instructions.

Thank you!