Optimizer is a free, open-source, very comprehensive and easy-to-use system optimization tool, developed by deadmoon (hellzerg) from Greece. It supports Windows 7 and above systems, but is mainly designed for Windows 10/11. In addition, it is more suitable for a freshly installed system, and can automatically identify your Windows version and provide some specific setting items.

DISM (short for Deployment Imaging and Management, AKA: DISM Plus Plus), it is just in the system folder (DISM.exe), you can run the 'CMD' (as administrator) and type 'dism' to call it out... used to install, uninstall, configuration and update the features and program packages of the offline Windows (R) or Windows PE image.