1. Use SDFormatter 4.0 to format the SD card on Windows
Options settings, select quick format, logitech resizing off;
Don't care about the prompts, just confirm and format;
2. Burn the corresponding installation package image to the TF card
Select the image file ubuntu-mate-16.04.2-desktop-armhf-raspberry-pi.img , select the device, and write it.
3. Insert the burned SD card into the Raspberry Pi 3 to use it;
The board is connected to the mouse and keyboard, HDMI to the monitor, and then powered up.