Windows 10 Pro, TurboTax 2021 Premier. No problem with any other program updates. No option to bypass updates so can't even open TurboTax. Got the CD but installed it from your website instead and was able to open and update until today (03/20/22).
Started TurboTax 2021. Got screen which said install latest updates. Said Yes to Windows 10 screen to allow changes.
Got screen to install program updates est 5 min.. Waited but install does not start, eventually get error "Failed to install update Microsoft installer error 1603. Fatal error during installation:."
Updated Windows 10 Pro with optional update to 20H2 Build 19042.685 Same result.
This is your problem, not a Windows installer problem.
SOLUTION: YOU HAVE TO REINSTALL THE PROGRAM, WHICH MEANS YOU HAVE TO FIRST UNINSTALL, THEN REINSTALL. YOUR TAX WORK TO DATE WILL BE SAVED AND PICKED UP UPON THE REINSTALL.
NOEMI FROM TURBO TAX SUPPORT WAS VERY HELPFUL IN WALKING ME THROUGH THIS EFFORT.
