Unable to open Quicken after updating to the latest release
If you're unable to open Quicken for Windows after a recent product update, it's possible that an issue during the installation is preventing Quicken from opening.
To fix this issue:
Follow the instructions in this FAQ Using QcleanUI to Fix Installation Issues with Quicken for Windows to fix this issue. After you use the QCleanUI utility, you'll be able to update Quicken to the latest release and open your Quicken data file.