Ensure .NET Framework 3.5 and 2.0 are enabled. In Windows, you can toggle these on via Control Panel -> Programs and Features -> Turn Windows features on or off .
Often caused by missing .NET Framework 3.5 or conflict with antivirus software. "No valid license found": Ensure
This method attempts to trick the installer into thinking a previous version exists. "No valid license found": This method attempts to
Turn off Windows Defender; run setup as Administrator in Windows 7 Compatibility mode. Missing .NET 2.0 / 3.5 architecture Turn on .NET 3.5 via "Turn Windows features on or off". Database installation hangs System date conflict or active internet blocking Set PC date back to 2013; disconnect internet entirely. Keygen / Activation fails Antivirus deleted the activation files Check antivirus quarantine history and restore the files. Database installation hangs System date conflict or active
