Use a USB flash drive to install ubuntu and a USB flash drive ubuntu
I. Create a USB flash drive for ubuntu
1.1 download ubuntu https://www.ubuntu.com/download
1.2 download and install UltralSO
1.3 open the disk and click the file to open step 1. The downloaded ubuntu iso file is loaded.
1.4 insert a USB flash drive and click the USB flash drive boot item to find the hard disk image writing option.
1.5 click to easily start writing to the new drive boot area-Syslinux click OK
1.6 click the write button and then click OK to start writing the boot disk of the USB flash drive.
Ii. Use a USB flash drive to install ubuntu
PS: hard disk space must be idle
2.1 set BIOS boot options to set USB flash drive startup
2.2 go to the installation page and select the System Language
2.3 coexistence of ubuntu and other systems (automatic partitioning)
2.4 install now-> select time zone-> continue installation-> select keyboard layout (use default)-> create user password-> continue-> Start Installation
3. Set ubuntu system boot
3.1 download and install easybcd.
3.2 select "Add new entry"
3.3 select "Linux/BSD"-> "GRUB2" (you can change the name)-> "Add entry"
3.4 restart to see ubuntu and windows System Selection