Fix error code 579 windows update - Dell Inspiron 1525 Notebook

Try this solution from this link

http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/f9a0bc73-7172-4429-84ce-ca249d6fbfd5

Windows update Error code 579
Log on to the computer by using an account that has administrator rights.
Click Start, type msconfig.exe in the Start Search box, and then press ENTER to start the System Configuration Utility.


Regards,
Will

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HEY I have faced same problem...i have solved the problem by the help of this link....this link may helpful to....
http://msuschat.microsoftsupport.us/