

It uses a custom NT-like “kernel”, ships with a WIN32 subsystem, and features Windows driver compatibility. It is an alternative operating system designed from the ground up to behave, work and look like classic Windows. The first thing it’s important to note is that ReactOS is not based on Linux. We’ll take a closer look at the key improvements and features of ReactOS 0.4.9 in a second.įirst, a quick recap of what this free Windows alternative is all about. The latest effort to result from the switch to a faster release cadence, ReactOS 0.4.9 comes packing a stack of smaller changes than previous versions, with focus firmly on improving the overall system stability, usability, and UI consistency. A brand new version of the open source Windows clone ReactOS is available to download.
