Can't install Premier 2019: Error 1603 "Windows Installer Error" tried twice with disk and twice with download

[Anonymous]

Can't install Premier 2019: Error 1603 "Windows Installer Error" tried twice with disk and twice with download Windows 10

[SteamTrain]

First, make sure you check for, and download / install any Windows updates.  There were some .NET updates in the last two weeks.  Reboot your computer even of you don't find any.   And try again.

Still a no-go?

Go thru this to see if anything there helps:

https://ttlc.intuit.com/community/bugs-and-error-messages/help/error-1603-a-fatal-error-occurred-dur...

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After that, it's off to Customer Support for help on the phone:

https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632