Operational hours: 10:00 - 23:45 WIB (GMT+7) Please understand, because the admin is human, not a robot. If you are served outside of these hours, it means the admin is ON. Microsoft Windows or commonly called Windows is a family of operating systems developed by Microsoft, using a graphical user interface. The Windows operating system has evolved from MS-DOS, an operating system based on text mode and command-line. This license key can be used for Windows 10 Pro or Windows 11 Pro Products you get: 1x Original License Key for 1 PC Thank you