In order to learn how to install TurboTax on windows 10 firstly, you will need to right click on your taskbar and click on the “Task manager” option. Then, search for the “Intuit update service” section in the process tab and end process. Next, switch to the "Details" tab and look for the "MSIexec.exe" file. End task on all of the files that are still running. Now, you will have to right-click on the taskbar located at the bottom of the screen and select the Task Manager option. After that, select the More details option if the task manager does not have tabs in it. Finally, select the Services tab and make sure the status next to msiserver is not running.