RiderWpfPreviewerLauncher is a software product for Windows developed by JetBrains
It is reported that the following Windows processes are part of RiderWpfPreviewerLauncher:
If you want to remove RiderWpfPreviewerLauncher from your computer, just go to Start > Control Panel > Add/Remove programs and select RiderWpfPreviewerLauncher from the list of programs.