1.Download the Ubuntu 18.04.01 (About 1Gb). 2.Burn the Ubuntu 18 to a DVD (Use the outsite DVD-ROM). 3.Reboot the System. Start from DVD-ROM. 4.Install Ubuntu 18. 5.Do not connect to the Wifi, because the intel wireless LAN Adapter 7260 driver is wrong. 6.Make a partition, my partition is /boot : 1Gb,logical,ext4 / : 18Gb,logical,ext4 swap : 8Gb,logical,swap (same as memory) /home : 25Gb,logical,ext4 7.Select "Device for boot loader installation": the "/boot" disk that you just created. 8.Create the User id and password. 9.Install. 10.Reboot the computer, MBR is still the Windows. 11.Install the free software EasyBCD 2.2. 12.Click "Add New Entry", Select find "Linux" by "Grub2", Save. 13.Reboot the computer. You can enter the Ubuntu 18, by Windows MBR. 14.Use "apt-get update" to update the driver and software. 15.Install software. Now the Computer does not have any problem. The problem of Intel wireless LAN Adapter 2760 driver...