Error 1305 installing TurboTax on Windows 10 - solved

S325 · ‎February 5, 2021

Go to Windows Security , App & browser control, disable "Reputation-based protection" - "Check apps and files", "Potentially unwanted app blocking".

It helped on three different PC where I unsuccessfully tried to install TurboTax Deluxe 2020.

KatrinaLO · ‎February 5, 2021

Please see the TurboTax support FAQ for Error 1305:

But if you still feel you require additional assistance, you can contact us at (800) 446-8848.

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