If you want to make the clean urls with the pathauto module use the following steps

Step 1: Go to Administer >> Site configuration >> Clean URLs to check that they are enabled.

Step 2: Download the latest version of “Pathauto” Modules and Download the “Token” Modules.

https://drupal.org/project/pathauto

https://drupal.org/project/token

Step 3 :- After Download modules put the below directory
Directory: – sites\all\modules

Step 4:- Enable the Pathauto and Token Modules from Admin –> Site Building –> Modules

Step 5 :- Create/Add a new node. If you leave “Automatic alias” checked, the address of the page will likely be your Page title in this format: -

/content/your-page-title/

Step 6 :- If you want to change the URL aliases in Admin Side.

Go To :- Administer >> Site building >> URL aliases >> Automated Alias Settings: