I used this youtube tutorial: https://youtu.be/QbLIDireUSg

Important notes:
Cahnge settings.php permissions from 444 to 777 before making changes (and then change back)

set the data base name, data base user and data base user's password

• After installation goto https://drupal.org/node/275705
• Install Internationalization and Variable module
• Enable Locale, Contact and Content translation in Core
• Enable Variable, Variable realm and Variable store in Variable

• Download current version from https://drupal.org/project/drupal [I downloaded 7.22].
• Unzip and rename default drupal-7.22 directory to project name of your choice [I used “knowledge”]