Get your taxes done using TurboTax

You can uninstall and then reinstall the software using the procedure in this TurboTax support FAQ - https://ttlc.intuit.com/questions/1901002-reinstall-turbotax-windows

You may also want to try a forced uninstall.  See this TurboTax support FAQ - https://ttlc.intuit.com/questions/1901054-forcefully-uninstall-and-reinstall-turbotax