[SOLVED] Drupal 6.x/7.x not installing

Dear friends, I was installing Drupal 6.x in my brother’s PC today and I was sticked at the minor problem. I could not complete the “Third step”, though I enter the correct information the database wouldn’t install properly and get me to the same page again and again. Then I tried lots and lots of things and searched web, but I didn’t got the solution. I thought it was problem with my brother’s PC but I rechecked the steps and found the solution.