The “Operating System Not Supported” message appears when trying to install Boulevard on a version of Windows that does not meet the program’s system requirements. The installer cannot proceed unless the operating system is compatible, so the solution is to install Boulevard on a supported version of Windows or update Windows if possible.
If you're unsure which operating system your computer has installed, please visit the Microsoft website for further assistance.
We also recommend that you view the System Requirements for Boulevard® as well.
If your computer does meet the current system requirements, to prevent possible issues, you'll also want to ensure that your Windows updates have all been installed before installing Boulevard. See Windows Update: FAQ for further help on checking for Windows updates.