1. Make a U disk boot disk 1. Download the u boot U disk installation tool and install it; 2. Connect a blank U disk to the USB interface, and the U disk is 8G or above; 3. Make a U disk boot disk After the tool reads the USB flash drive, click to start creating, and then wait patiently for the USB boot disk to be created. During the production process of the U disk boot disk, the U disk will be formatted, so it is recommended to use a blank U disk. If there are important files in the U disk, please make a backup in advance. 4. Search the Internet and download the system image file you want to install to the root directory of the USB flash drive. In this way, a USB boot disk that can install the system is completed. 2. Set U disk startup. The common U disk startup setting method is to connect the U disk, press the shortcut key to enter the shortcut menu after turning on or restarting, and then set the U disk as the first startup item. The one-click USB boot operation is very simple. With the USB boot disk connected, press the shortcut startup key continuously after turning on or restarting. After entering the quick startup menu, we use the up and down arrow keys to select the USB device and press Enter to confirm. Afterwards, the system will automatically restart and then enter the pe system. We can start to reinstall the system. 3. System installation 1. Restart the computer, enter the u startup interface, use the direction keys, select the second item down, and press Enter to enter the win8 pe system. 2. The pe installation tool will automatically start and read the system image file. We do not need other settings, just click OK on all options. After that, the system will automatically restart and then start the system installation. We don't need to do anything, just wait patiently for the system installation to be completed.