Problems like TurboTax 2020 not working on Windows 10 can be
aggravating, especially if Windows 10 is the only operating system installed on
your computer. When Turbotax 2018 does not work on Windows 10, Turbotax 2019
does not work on Windows 10, or Turbotax 2020 does not work on Windows 10, you
may be unable to perform your tax operations on the software. This could occur
as a result of a faulty Windows Registry entry, the presence of viruses or
malware, or corrupt system files. To Troubleshoot TurboTax not working issues, take the following steps:
Navigate to Task Manager.
Locate and end the Intuit update service process on the process tab.
Locate MSIexec.exe on the Details tab, select it, click "End
Task," and reinstall Turbotax.
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