1. Click on installation.
2. Click on agree terms of services that is written below in the box then click Continue
3. Choose the default language then click Continue.
4. In the Installation type select Manual then click Continue.
5. In the Device' select /dev/sda/ to create new partition table and click Continue then select free space and click Add, enter the size in megabytes and mount paint then click OK.
6. In free space click Add and select swap area in the use as, click OK and click Install now.
7. Click on continue, enter your name and password then click continue.
8. Installation complete, now restart your computer.