If you are asking about a TurboTax program installed on your computer instead of a tax return file, you can go to your computer system and choose to delete the TurboTax program for the year you want to delete. In Windows 10, just type Add or remove program in the search box and the lower left corner and then click on Add or remove program. Select the TurboTax program year you want to delete and choose uninstall.
Prior year programs should not interfere with current year program. Was there a problem with the prior year installation?
