Are there any specific considerations or differences when troubleshooting AutoCAD Error 1603 on different Windows OS versions (e.g., Windows 10 vs. Windows 11)?

While the core troubleshooting principles for Error 1603 remain consistent, certain OS versions may have specific considerations. On Windows 10 and 11, User Account Control (UAC) is more restrictive, sometimes requiring explicit 'Run as administrator' even for administrator accounts. Built-in security features like Windows Defender and SmartScreen can also be more aggressive in blocking installer components. On older systems like Windows 7 or 8, ensuring the latest Service Packs and Windows Installer versions are installed is crucial. Regardless of the OS, maintaining up-to-date Windows updates can resolve many underlying system stability issues that contribute to installation errors.