Could be useful to say where you are located in case that is an influence.  And here are links to the error 1603 issue at a reputable sites based on a quick Google search:  Hope one helps. https://helpx.adobe.com/creative-suite/kb/error-1603-install-cs3-cs4.html https://www.symantec.com/connect/forums/error-1603-while-installing-software-software-delivery https://support.microsoft.com/en-us/help/834484/you-receive-an-error-1603-a-fatal-error-occurred-during-installation-e  
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