After investigation, the issue that PowerDirector crashes after Corel Video Studio Ultimate 2018 is installed can also be reproduced with the developing tool “Graph Editor” without PowerDirector installed. To avoid the error of Corel Video Studio Ultimate 2018 affecting PowerDirector users, we have found a workaround for the issue. The solution will be implemented in the next patch, but you can manually apply the fix by following the below steps.

1. Depending on your OS version, download the file CLDVinf.ax from one of the links below. If your Windows is the 64-bit version, download the 64-bit version module. If your Windows is 32-bit version, download the 32-bit version module. Extract the downloaded file CLDVinf.zip, and find the module CLDVinf.ax.

- 64-bit: http://download.cyberlink.com/ftpdload/cs/Temp/VDE182101-0019/x64/CLDVinf.zip
- 32-bit: http://download.cyberlink.com/ftpdload/cs/Temp/VDE182101-0019/x86/CLDVinf.zip

2. Browse to the below folder on your PC:

C:Program Files\CyberLink\PowerDirector16\runtime\recordingPack

3. Find the file CLDVinf.ax in the folder and rename the file as the backup. For example, CLDVinf-backup.ax.

4. Copy the downloaded CLDVinf.ax to the same folder.

5. Re-launch PowerDirector

Please note that the module is also compatible with PowerDirector 15. If you are facing the issue with PowerDirector 15, you can modify the folder path in the step 2 to find the module in the PowerDirector 15 installation folder and copy the downloaded CLDVinf.ax to the folder as well.

For customer support related issues, please contact:
- Customer service: https://membership.cyberlink.com/support/customer-services.do
- Technical support: https://membership.cyberlink.com/support/service/technical-support.do