This is a known issue with a recent Windows Update. You can manually reinstall the apps into the expected folders.
1. Go to the folder where the SmartDesk Launcher is installed. This is usually "C:\Program Files (x86)\Cemtrex Inc\SmartDesk Utilities\SmartDesk Launcher". Open the file called "Launcher."
2. For each app in the launcher, click on "Install App." Do this one app at a time. Once complete, restart your computer and functionality should return.