title: SQL Server 2008 Installation error message: Unable to open windows installer file
body: <p>When running the SQL Server 2008  setup, I receive the following error message:</p>
  
  <p><strong>TITLE: Microsoft SQL Server 2008 Setup</strong></p>
  
  <hr>
  
  <p><strong>The following error has occurred:</strong></p>
  
  <p><strong>Unable to open Windows Installer file 'G:\x64\setup\sql_engine_core_inst_msi\sql_engine_core_inst.msi'.</strong></p>
  
  <p>Windows Installer error message: The system cannot open the device or file specified.
   .</p>
  
  <p>Click 'Retry' to retry the failed action, or click 'Cancel' to cancel this action and continue setup.</p>
  
  <p>...</p>
  
  <p><strong>Please let me know how can i fix this is as i am unable to continue the installation process ... please help!</strong></p>
  
  <p>Regards</p>