I have the same problem with TurboTax 2019 Standard. I've installed, uninstalled, redownloaded countless times. I'm running Windows 10 Pro 64Bit. This is clearly a problem on Intuit's end as it seems to be a programming issue in my opinion. I've purchased tax software from Intuit for many years when it was called QuickTax. This is the first time I've had this much trouble trying to update TurboTax. Looks like this will be the last time I buy it if a proper fix can't be released.☹️
Edit: Just to prove a point, I just uninstalled AGAIN and redownloaded and reinstalled AGAIN and it STILL doesn't fix the TT805 error. 🙄
