Good Luck. The best I can tell you is to contact support and tell them your problem. They should at least be able to get you set up with another download direct from Intuit with a new key code with 5 activations.
Based on my own experience, I doubt that they will be able to fix the issue on your computer. If you have another computer, try installing it on that computer.
I have a Windows 7 computer that I have used for TurboTax for many years without problem, but once 2019 and activation came along, TurboTax will not stay activated on that computer. I have spent over three hours on a total of 5 or 6 calls to support without a resolution. I did get a new key code with 5 activations and was able to successfully download and activate TurboTax on two other computers (not the Windows 7 computer), and activation has stayed in place after even shutting down those computers and restarting them. When I tried this on the Windows 7 computer, I could exit and relaunch TurboTax without reactivating, but once I turned off my computer and restarted it, TurboTax on the Windows 7 computer would not activate. And yes, I turned off my firewall, malwarebytes and anti virus when installing and activating, and completely rebooted my entire network before downloading. The two computers TurboTax works on are on the exact same network.
