topic Fatal error 1603 updating TT 2023 in Get your taxes done using TurboTax

Fatal error 1603 updating TT 2023

geno11x11 — Wed, 11 Feb 2026 03:25:40 GMT

Fatal error 1603 updating TT 2023

I have already researched this problem on the intuit support website, and I have followed all the suggestions.

Updated Win10Pro64
Used the .NET repair tool.
Turned off virus software.
Installed the manual TT update.

The manual TT update says it completed successfully, but when I load TT it continues to require an update and fails again and again. The solution might be for Intuit to provide for an update abort option, but that is not likely to happen. Is there a way to disable program updates?

No problems until TT installed the CA State return component.

Suggestions?

Re: Fatal error 1603 updating TT 2023

ee-ea — Fri, 16 Feb 2024 09:14:19 GMT

https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/error-1603-fatal-error-occurred-installation/L0QVgZpOi_US_en_US?uid=lsofmmap

Re: Fatal error 1603 updating TT 2023

steveboyles7 — Thu, 29 Feb 2024 03:27:30 GMT

I did all this too.

Fatal error 1603 updating TT 2023

I have already researched this problem on the intuit support website, and I have followed all the suggestions.

Updated Win10Pro64
Used the .NET repair tool.
Turned off virus software.
Installed the manual TT update.

No problems until TT installed the CA State return component.

I also had no Problems till TT installed the CA State return.

I have been working on the phone with Intuit Rep. Andrew & he is also stumped.

Please Help!!!

Re: Fatal error 1603 updating TT 2023

geno11x11 — Thu, 29 Feb 2024 06:32:38 GMT

Already been there, followed every step, and it did not solve the problem. In fact, those are the steps I listed in my post.

Re: Fatal error 1603 updating TT 2023

CatinaT1 — Fri, 01 Mar 2024 15:07:17 GMT

If you have done everything suggested here: Error 1603: "A fatal error occurred during installation or updating", we can only suggest calling Customer Service.

Please call TurboTax Customer service.  Here is a link:  Turbo Tax Customer Service

Re: Fatal error 1603 updating TT 2023

SlickOne — Fri, 08 Mar 2024 16:27:07 GMT

Same Problem.

Backup you tax file to another location just in case.

Remove TT2023 then reinstall from the CD etc.

This will fix the problem and updates will work.

Re: Fatal error 1603 updating TT 2023

ML113 — Fri, 22 Mar 2024 07:53:38 GMT

Have the same problem, looks like reinstall TT2023 is the only option.

The only Q now whether "reinstall" on the same computer will require the new "license"?

(I used all 5 licenses already)

Re: Fatal error 1603 updating TT 2023

SlickOne — Fri, 22 Mar 2024 12:19:31 GMT

I reinstalled 3 times over the last couple months to get around the 1603 error.

I used the same license every time with no issue.

(On the same Windows 11 computer)

Everyone with this bug running windows 11 also?

Re: Fatal error 1603 updating TT 2023

ML113 — Fri, 22 Mar 2024 19:40:54 GMT

Thank you SlickOne, how do you know you didn't use license during reinstall ?

Did you have to login to Intuit account to register you new installation(on the same computer)?

Or reinstall is skipping this step and only asking to enter activation key?
By the way, I have this problem on Win10.

Re: Fatal error 1603 updating TT 2023

SlickOne — Sat, 23 Mar 2024 03:21:48 GMT

I have cd and just used same key.

Call support and explain the problem they will help you.