If you have tried all 12 steps and the error persists, visit the ACDSee official community forums and post your Event Viewer log. Their support team is responsive, but only if you provide the fault module name. Good luck, and may your edits be non-destructive.
If you are a professional photographer, graphic designer, or digital asset manager, ACDSee Ultimate is likely a cornerstone of your workflow. Its speed and non-destructive editing capabilities are industry favorites. So, there are few things more jarring than clicking the icon only to be met with the dreaded pop-up: “ACDSee Ultimate has encountered a system error and will close now.”
Start with the command and the Visual C++ repair . If you are still stuck, the Event Viewer fault module name is your best friend.