Windows 8 compatibility mode also worked for me on TTX 2017 Deluxe. TTX 2017 Business still has Error 117 problem for me when trying that mode.

This is not a CD or tax file issue. TTX 2017 Deluxe and TTX 2017 Business installed and ran fine in January 2018 and as recently as July 14, 2018. Error 117 beg...

I have same problem. TTX 2013-2016 Business and Personal run correctly. TTX 2017 Business and Personal do not. I get 117 error described above on both. Clean re...

I get the same problem but it is not related to a tax file. I get Error: 117 on starting a clean copy of TurboTax 2017 with no tax files available.