- Configuration and maintenance
- Applications and utilities
- User interface
- Windows Server
- File systems
- Core components
- Services
- DirectX
- Networking
- Scripting and command-line
- Kernel
- .NET Framework
- Security
- APIs
- Drivers
(source: https://en.wikipedia.org/wiki/List_of_Microsoft_Windows_components)
| Website | Short description | Language | License | Last commit |
|---|---|---|---|---|
| AtlasOS | An open and transparent modification to Windows, designed to optimize performance, privacy and stability |  |
 |
|
| EternityOS | A custom Windows 10 Installer ISO |  |
 |
|
| KernelOS | A Windows operating system modification revamped for performance and compatibility |  |
 |
|
| DragonOS | Polskie Windows 10 custom ISO based on AtlasOS |  |
 |
|
| RubenOS | A custom Windows™ modification for gaming and home-use |  |
 |
|
| RekOS | A custom windows 10 image designed for Gamers for the purposes of achieving better performance and latency |  |
 |
|
| TobirOS | Really powerfull Windows 10 Pro tweaked ISO |  |
 |
|
| Windows 10 Awesome Edition | A Custom ISO build for Windows 10 with all the crap removed |  |
 |
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