NotACPA said: What EXACTLY is happening when you try to use on that 4th PC? Any error messages?And, was Q installed on the "pre-upgraded" version of this PC?
splasher said: Download and install the patch update for Q2017 found at this link to see if it solves the issue:https://www.quicken.com/support/quicken-2017-windows-release-notes-updates-and-mondo-patch