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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