[support] after installation problem

[J ZHANG]

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Hi, I am new to drupal and I am trying to learning drupal in a local machine, the configuration is :
windows 7, apache 2.0, mysql 5.5 and php 5 with drupal 7.4.
I put the unzipped drupal 7.4 directory into the default apache web server root ,which is htdocs.
then I clicked the index.php which redirect to the installation.
after I installed the Drupal 7.4 and show the page showed like this,<http://public.bay.livefilestore.com/y1pazRRQYf6CwcGhhVX8cJwSQhYx98-qNP41XmGQvqS8nitBwkZ89ejNMvwaB7axgVyc7vS_rOoNcMIjDZvbcpQBw/after_installation.jpg?download> 
     
when I clicked the "visit your new site", it forward to the index.php:
like the normal.
after this no matter which link I clicked on this page, it went to the default directory in the browser window:
  
Am I do something wrong? I search the web but no one comes with this problem {I am not sure if this is a problem, but this do not seems right}, 
Does anybody know why this happened?
thank you !!
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