Yes, a 404 (not 4004) "not found" error.  I've been getting it for two days now.  Not a great start to the tax season.

Troubleshooting update issues on Windows.  Have you tried the manual update?  Updates usually come out on Thursdays.

https://ttlc.intuit.com/community/troubleshooting/help/troubleshoot-turbotax-for-windows-updating-issues/00/25885

I noticed after I posted that I said 4004 rather than 404.  

Nice to hear that somebody else is having hte same problem.  My problem started on Saturday.  I was able to do one update prior to that.

Same error with manual update.

I'm having the same problem. I've tried the hard re-install several times, the manual update, and talked to support. All to no avail. Hopefully they fix it soon.

Glad to hear I am not alone.  I also spent time with support, about 2 hours worth, and we went thru the uninstall/reinstall process without success.  Also tried the manual update process without success.  The support person indicated that you often have to wait  until there are "a significant number of people" reporting the same problem to get the attention of the tech side.

Just a side note, I was able to do an update to my 2023 TurboTax software still on my machine without a problem.  I am pretty sure it is a different server but it felt good to confirm I can get out from my computer to Intuit.

I too was able to update last years 2023 software with no problem.

Downloaded on both Windows 2010 and Windows 2011, TT2024 Individual Home & Business is not updating due to "Error 404". It's saying server is not available. I've purchased a new computer recently because my old PC is getting old. I successfully installed TT2024 on both PCs and got the same #404 error when updating. I've tried the manual update without success. This needs to be fixed soon or I may loose confidence in Turbo Tax. I have not found tech support anywhere to fix this. Does anyone have a solution that goes beyond the solution suggested by the error message since that doesn't solve the issue in my case?

Oops!! Correction Windows10 and Windows11 not 2010 and 2011.

yes. Me too. Tried it all. It has to be on their end. What good is getting the software early if you can't use it.

yes have tried manual update and no help there

I have the same issue: "HTTP Server Error 404 - File not found."  I tried to uninstall TT and reinstall, but the issue continues.

For those that tried uninstall/reinstall, did you download a new copy of TT or reinstall the copy you originally downloaded?

I'm using TT Home and Business.

New copy of course. Hate to use the same broken one.

Yes, just tried a reinstall of a fresh download--same problem.

Off to a great start TT.

Same - Amazon - Premier download with install code. 404 on update. Re-downloaded. Reinstalled. Installed super patch. Windows 11 Pro with all updates. No blocking firewall issues. http://intuit.com added as trusted site.

All done with support on the line. They had nothing to help. Then they hung up.

Saw a post that they got the error on Windows Pro but they were able to install and update on another computer without Pro.   

Thanks. I'm waiting for another call back. Do you have a reference to that post?

Found it.  This user got errors on Windows 11 Pro but got it to work on another computer with Windows 10

https://ttlc.intuit.com/community/taxes/discussion/turbo-tax-premiere-2024-will-not-install-windows-11/00/3404524

If I am reading that post correctly, that problem is with the initial install, not the check for updates.

I am on Windows 11 Home but hopefully somehow related?

"All done with support on the line. They had nothing to help. Then they hung up."

At least TT hasn't suggested "clear your browser cache", "restart your computer" or "reinstall your operating system"--all of which were TT's go to responses last year.

One possible solution is to uninstall TT 2024, download the current version (www.InstallTurboTax.com) and reinstall it EACH TIME you want to use TT.  I don't know how often TT updates www.InstallTurboTax.com but you might want to give it a try.  Keep track of the version and components numbers in the "About" menu item of each install.

My strong guess is that update URL embedded in the TT code is incorrect--hence page not found.  The only way to fix that is to have TT users reinstall a newer version (with the correct URL) or issue a patch that users will have to install separately from TT.  Given that Update is not working, it can't be fixed by updating.

Or maybe the update website is broken.  But that (I think) would be relatively straightforward fix.

I ike the idea of a bad URL being imbedded in the software.  As I think I was able to complete an update once, perhaps that update imbedded the bad URL?  I installed on 11/20 or 11/21 and believe my suceesful update was 11/22.  My version is listed as 024.000.0206 per the "About Turbotax" under "Help".

Regarding how to fix this. I suspect TT could just do a URL Forward from the "bad" URL to the correct URL behind the scenes on their side allowing the update to occur.  Assuming they have fixed the URL in the latest package, it should now be correct going forward.

Regarding  reinstalling all the time, accordng to the support person I worked with for about 2 hours, she says each reinstall uses up one of your 5 license counts even when done to the same machine.  So careful with that approach for now.

You might be right about the number of installs, but when I reinstalled I did not need to enter a license code or register, and so I think the program recognized the existing license on my computer.

I too was able to update successfully 1 or 2 times before it started failing to update.

I retried the manual update again (https://ttlc.intuit.com/turbotax-support/en-us/help-article/update-products/manually-update-turbotax-windows-software-basic/L3Wf9OPaf_US_en_US?uid=m48klepv), but it didn't help.