Be sure you have checked the installation prerequisites before attempting to install.
Download the correct installer for your hardware:
Cinedeck RX3G for Gen 9 or later i7 or i9 CPU with Quicksync
Cinedeck MX for Xeon CPU with Nvidia GPU
Double-click to install
If UAC shows the Windows protected your PC dialog, select “More info”
Select “Run Anyway”
The installer will run
To start the Cinedeck Server, right click the icon and select “Run as administrator.
Troubleshooting
On the PC, it is critical that the user account used for installation has full Administrator privileges or certain parts of the installation will fail, even if user provides Admin password during the install process.