Im getting below error when upgrading with Exchange 2010 Sp3. Please assist.
Couldn't remove product with code 4934d1ea-be46-48b1-8847-f1af20e892c1. Fatal error during installation. Error code is 1603.
Below the complete error from Exchange Setup Logs
[02/16/2014 04:55:04.0515] [0] Setup will run the task 'uninstall-msipackage'[02/16/2014 04:55:04.0515] [1] Setup launched task 'uninstall-msipackage -logfile 'C:\ExchangeSetupLogs\ExchangeSetup.msilog' -ProductCode '4934d1ea-be46-48b1-8847-f1af20e892c1' -PropertyValues 'BYPASS_CONFIGURED_CHECK=1 DEFAULTLANGUAGENAME=ENU''
[02/16/2014 04:55:04.0515] [1] Active Directory session settings for 'Uninstall-MsiPackage' are: View Entire Forest: 'True', Configuration Domain Controller: 'domain.local', Preferred Global Catalog: 'Domain.local', Preferred Domain Controllers: '{ domain.local }'
[02/16/2014 04:55:04.0515] [1] Beginning processing uninstall-msipackage -LogFile:'C:\ExchangeSetupLogs\ExchangeSetup.msilog' -ProductCode:'4934d1ea-be46-48b1-8847-f1af20e892c1' -PropertyValues:'BYPASS_CONFIGURED_CHECK=1 DEFAULTLANGUAGENAME=ENU'
[02/16/2014 04:55:04.0547] [1] Removing MSI package with code '4934d1ea-be46-48b1-8847-f1af20e892c1'.
[02/16/2014 04:55:06.0187] [1] [ERROR] Unexpected Error
[02/16/2014 04:55:06.0187] [1] [ERROR] Couldn't remove product with code 4934d1ea-be46-48b1-8847-f1af20e892c1. Fatal error during installation. Error code is 1603.
[02/16/2014 04:55:06.0187] [1] [ERROR] Fatal error during installation
[02/16/2014 04:55:06.0234] [1] Ending processing uninstall-msipackage
[02/16/2014 05:03:04.0333] [0] End of Setup
[02/16/2014 05:03:04.0333] [0] **********************************************