1. Windows Server
3.81%
2. UNIX
2.43%
3. CentOS
1.99%
4. Ubuntu
1.72%
5. Debian
1.36%
6. Gentoo
0.22%
7. FreeBSD
0.12%
8. Red Hat
0.07%
9. SUSE
0.06%
10. Fedora
0.06%