My downloaded TTPremier no longer launches. It snags on startup and just shuts down. Ive tried all the suggestions. Can I swap download for on-line version?

[SteamTrain]

If on Windows Computer....

1)  Did you check for Windows updates, and reboot (AND reboot even if none appear)?  Partially-installed Windows OS updates are known to do that.

2) did you try the Rt-Click on TTX icon and select "Run as Administrator"?

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If you go to "Online" you can't transfer what you've already done, so you'd have to start over....and not sure they'll give you a credit for already paying to Desktop....that would be up to Customer Support.

[chispwretz]

Yes.  I did have a windows update pending, so i took care of that, restarted, and then reinstalled TT, but it fails to launce, even in admin mode, leaving me with a message....

TurboTax - Error

Looks like we've run into an error.

We're sorry but we need to close TurboTax. This may cause you to lose some of the info you've entered....

[SteamTrain]

You could try the "Manual Update" for TTX and see if that Helps. Sometimes it installs some subtle change that is missed in the regular updates:

https://ttlc.intuit.com/turbotax-support/en-us/help-article/update-products/manually-update-turbotax...

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Otherwise....off to Customer Support:

https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/turbotax-phone-number...