Unknown Error Using Camtasia on Windows

Problem

The Camtasia Recorder displays the error: "Unknown Error".

Solution

Reset Camtasia using the steps below to resolve the problem.

1. Exit Camtasia and the Camtasia Recorder. Confirm that they are not running in Task Manager.
2. Press Windows+R on your keyboard to open the Run window.
3. Type the following and click OK: regedit
4. Browse to:
   • Camtasia 2021: HKEY_CURRENT_USER\Software\TechSmith\Camtasia Studio\21.0
   • Camtasia 2020: HKEY_CURRENT_USER\Software\TechSmith\Camtasia Studio\20.0
   • Camtasia 2019: HKEY_CURRENT_USER\Software\TechSmith\Camtasia Studio\19.0
   • Camtasia 2018: HKEY_CURRENT_USER\Software\TechSmith\Camtasia Studio\18.0
5. Right-click the 21.0, 20.0, 19.0, or 18.0 folder (depending on the version of Camtasia) and click Export. Save the file to a safe location on your computer (this is a backup).
6. Right-click the 21.0, 20.0, 19.0, or 18.0 folder again and click Delete.
7. Close the Registry Editor, and open Camtasia.