You do not have to turn off Controlled Folder Access. You can simply add TurboTax to the allowed list of apps in the Controlled Folder Access settings and it will work. If you have Windows 10 version 1809, under Virus & Threat Protection, click on Allow an app through Controlled folder access. Click + Add an allowed app> Recently blocked apps and you should see TurboTax.exe in the list of blocked apps. Click the + sign to add it to the allowed apps. I did this and saving works fine with no problems while still leaving ransomware protection turned on to block access from other unauthorized programs.
