For installing joomla first need to download the joomla package. To download joomla click here link
After download extract it and rename the folder as like as you choose. Let give the folder name "myjoomla".
Now cut the "myjoomla" folder and paste into c:/xampp/htdocs folder. Open a browser and write localhost/myjoomla. Press enter... Give Username and Password Fig(01)

                                     There are seven step to complete the joomla installation process.
                  Step-1: Language:  choice your language.click next button.
          
                  Step-2: Pre-installation Check: Here nothing to configure. So click next
           
                  Step-3: License: Here nothing to configure. So click next button.
           
                  Step-4: Database: Here fill out the blanks with appropriate settings like below and see fig(02)
                            Database Type: MySql.If you use another database then select that.
                            Host Name: localhost. Because you install joomla in your PC.
                             Password: As your wish. But now i don't give password.
                             Database Name: joomlatutorial. This is created in XAMPP for database.
                   Step-5: FTP Configuration: No need to change anything. Skip it and click next and see fig(03)

                   Step-6: Configuration: Here fill out the blanks with appropriate settings like below and see fig(04)
                                                        Site Name: As your wish. Suppose i give here "Beginner joomla tutorial"
                                                      Your Email: Give your valid email address.
                                     
                                              Admin Password: xxxxxxx
                                              Confirm Admin Password: xxxxxxx
                                       

  Now in same page if you click on "Install Sample Data" button,can see demo web-page after install joomla. If not click you can't see.Now click next.

                  Step-7: Finish:  First delete the "installation" folder from c:/xampp/htdocs/myjoomla. And click on "Site" button to see your web-page. Or click on "Admin" button to make change your website. See fig(05)

Fig 01: Admin panel

Fig 02: Database

Fig 03: FTP Configaration

Fig 04: Configaration

Fig 05: Finish installation