ReactOS is a windows binary compatible operating system inspired by Windows NT architecture. The purpose of this operating system is to give an open source & reliable alternative platform to execute various windows applications.

Being inspired from Windows NT architecture, ReactOS provides a desktop experience similar to Windows NT operating systems. However, under the hood, it is capable to handle modern hardware resources and applications. In addition to classic desktop environment, you can also switch to modern desktop layout.

Comparing to modern GUI based operating systems, ReactOS is lightweight. It can run happily if there is 500 MB of disk space and 96 MB RAM.

Type Other
Status Active
Home Page
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Base distributions
  • Independent
Desktop Envrionments
  • Windows 9x Inspired Desktop