Installed 2018 turbotax on windows 7, it ran fine. updated computer to windows 10, turbotax won't start, tried to repair and it told me the installation was corrupt. I uninstalled and reinstalled using the downloaded file I originally got. Said the install file was corrupt. I downloaded a new install file from my turbotax account. It still says the file is corrupt.
Tough call...but you may need to talk to Customer Support during daytime working hours and let Tech Support work with you on the phone:
<a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number">https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number</a>
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Mental wanderings on what it might be:
1) make sure you recheck for any new W10 updates, and reboot several times before attempting to re-install TurboTax. TTX won't install at all if certain W10 updates are partially installed. That may require several reboots, even if you don't think you need to.
2) Make sure you rt-click on the installation file and "Run As Administrator"
3) make sure you download the installation file to your system hard disk....and run it from your system hard disk.
4) Could your virus checker be screwing up the installation file itself?...might need to shut down your virus scanner just before downloading the installation file, and turn it back on afterwards.
5) there is a forced uninstall procedure for W Vista, 7,8,10 that does a more extensive cleanup ..
<a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/1901054-forcefully-uninstall-and-reinstall-turbotax">https://ttlc.intuit.com/questions/1901054-forcefully-uninstall-and-reinstall-turbotax</a>
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Once you get it working, you'll have to install any state(s) you need before you attempt to open your initial tax file. The tax file won't load unless the proper states contained in your tax file are installed first.
If you updated from Win 7 to Win 10:
The first thing you need to do is back up your .tax2017 and .tax2018 files. (and any other tax year files too.) By default, they're located in the documents/turbotax directory. Now it's very common when doing an operating system upgrade from one windows version to another, for all your .tax20nn files to end up in the recycle bin. So you may need to restore those files from the recycle bin before you can back them up.
Next, go straight to the more advanced uninstall procedure at https://ttlc.intuit.com/questions/1901054 and select the one for "Alternate Solution for TurboTax Download". Don't waste your time with the first solution, as chances are it won't work since you upgraded from Win 7.
Finally, if you know how to navigate the registry, run regedt32.exe and delete the following registry values.
\HKEY_CURRENT_USER\Software\Intuit\TurboTax
\HKEY_CURRENT_USER\Software\Intuit\TurboTax 2018
At this point, you must reboot the computer.
Next, you need to run Windows Update until you get no more updates. You must be on Windows 10 version 1809 or newer.
Finally, just to "be sure", reboot the computer again, allow things to "settle down" for a few minutes after you log in. Then run the install program as administrator. To run as administrator, right-click the installation/setup file and select the "run as administrator" option.