SQL Server installation failed with Exit code (Decimal): -2068643839

Overall summary:   Final result:                  SQL Server installation failed. To continue, investigate the reason for the failure, correct the problem, uninstall SQL Server, and then rerun SQL Server Setup.   Exit code (Decimal):           -2068643839   Exit facility code:            1203   Exit error code:               1   Exit message:                  SQL Server installation failed. To continue, investigate the reason for the failure, correct the problem, uninstall SQL Server, and then rerun SQL Server Setup.   Start time:                    2009-10-20 23:58:46   End time:                      2009-10-21 00:56:30   Requested action:              Install   Log with failure:              C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20091020_235135\Detail.txt   Exception help link:           http%3a%2f%2fgo.microsoft.com%2ffw ...