Was anyone provided a solution that works to the TT401 Error?

The TT401 indicates that an error has occurred while saving your return. This message usually occurs because you are trying to save to a location that:

• You don’t have permission to save to (ex: another user’s folder)
• Is not available (ex: a USB drive that’s been removed)
• Has another issue, such as it’s full, or read only

So please double check where you are saving your file.

You can also try saving the file to a different place (such as the desktop) or with a different name. To do this, choose File> Save As from the top left corner.

You might have security software which is blocking TurboTax from saving files.

If you have Windows 11, turn off Controlled Folder Access or allow TurboTax in the Controlled Folder Access settings. 

There also may be an issue with your installation of TurboTax. You should uninstall it and then use the download from our website to reinstall it. You can download TurboTax from here: Where can I get the Desktop edition of TurboTax?

I was able to fix this on my Windows 10 system.

> load up windows security

> select Virus & Threat Protection

> select virus & threat protection settings

> select Controlled folder access, then Manage controlled folder access

> select Allow An App Though controlled folder access

> select the +  Add an allowed app

> choose Recently blocked Apps

> choose the TurboTax file name "tt2023.exe"

Worked for me...  good luck !

just find the file and drag it onto the desktop.  Then open the file and it will open.