Hello Souris,
Thank you for that. As a basic troubleshooting procedure for the issue, we suggest that you uninstall/reinstall the program using the steps that I have provided last June 12, 2014 to verify if the issue can be isolated on Windows Essential's end. In case the issue persist after re-installing the program, we would like to verify if you have recently downloaded/installed a program on your computer before you received the issue.
We'll wait for your response.
Thank you.