"Unexpected Error.Installation cannot continue due to an unexpected installer error. Error Code 65535" This happened last year. Please send a fix or update.

Please follow the instructions given below. 

https://ttlc.intuit.com/replies/5295823

Hope this helps. 

Windows 10:  Tried the suggested changes to my computer but nothing seems to work.  The registry fix program doesn't help.  Tried turning off all spyware and virus protection still get unexpected error.  Used Turbo Tax for many years and never had this problem but this is the first time for a Windows 10 machine.  Working from a downloaded 2019 Turbotax deluxe.  

Try the steps in the following link to manually update your software.

https://ttlc.intuit.com/community/updating/help/what-is-a-manual-update/00/26074

 

Try these steps to troubleshoot installation.

https://ttlc.intuit.com/community/troubleshooting/help/troubleshoot-installing-and-running-turbotax-on-windows/00/25718

 

If you need further assistance, use the following link to contact customer support.

https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632