Sometimes uninstalled or partially installed WIN 10 updates can mess things up ... run an OS update then reboot the computer at least 2 times and try the TT program updater again.
If that doesn't do it then you can also force an upgrade :
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Troubleshoot
TurboTax for Windows Updating Issues
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Troubleshoot
TurboTax for Mac Updating Issues
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What is a
manual update?
