Support can also be reached during business hours by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax
...and please let us know what the problem was. I've seen this reported on occasion, but don't what their final solution was.
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Maybe a write-protected directory?
Or you logged into your computer as a Guest, and do not have write permission?
If you are using Windows 10, perhaps it's being caused by Windows Defender Controlled Folder Access: