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.

Windows XP is Microsoft's first best operating system, Windows 7 is the second, but also the last. Starting with Windows 8, Microsoft has made Windows worse and worse. And when it came to Windows 11, Windows was already very sick. Four of the most serious problems are:

1. System is becoming more and more bloated, especially with the huge amount of junk apps pre-installed
2. System performance is getting lower and lower, with hundreds of backend processes
3. System is getting harder and harder to use, complicating all the simple operations
4. Privacy protection is getting worse, as Microsoft itself starts collecting all kinds of data from users like crazy

The advantages of simplifying system installation files are obvious: 1) greatly shortens the installation time of OS; 2) saves a lot of disk space occupied by system partition; 3) makes the system run faster; 4) there is no need to manually remove unwanted/unused files one by one after installing the system (otherwise, that's not only extremely inefficient, but also error-prone, and the these files can not be removed completely. So it's better not to install them at all). Besides, integrating drivers, patches, software and other resources into the system installation package can greatly reduce the time and effort spent on driver update, patch update, software installation and other aspects for a newly installed system.