Camtasia (Windows): Error 1500: Another Installation Is in Progress. You Must Complete That Installation Before Continuing This One

Problem

When installing the software, this message appears: Error 1500: Another installation is in progress. You must complete that installation before continuing this one.

Solution

Restart the computer and install Camtasia again. If this error still occurs, complete the following steps:

Windows 10 or Windows 8

  1. Press Ctrl + Alt + Del and select Task Manager.
  2. Click More Details in the bottom left corner.
  3. Click Processes on the top left corner.
  4. Select Windows Installer under Background Processes.
  5. Click End Task.
  6. Install Camtasia again.

Windows 7

  1. Press Ctrl + Alt + Del and select Task Manager.
  2. Right-click Msiexec.exe under Processes.
  3. Click End Process
  4. Install Camtasia again.