Changed text in line 6 to improve flow. Reword the second sentence on line 12. More rewording on line 13. Added a comma to the second sentence in line 13. Split the final sentence in half to simplify it and easier to read.
Changed "This definitely curbed the Linux's popularity as other commercially oriented Operating System Windows got famous. Nonetheless, the open-source aspect of the Linux operating system made it more robust." to "This definitely curbed Linux's popularity while another commercially oriented operating system, Windows, got famous. Nonetheless, the open-source aspect of the Linux operating system made it more robust and accessible."