Originally posted by ndmmxiaomayi:OK thanks. It works.
1. Start > Control Panel > Regional and Language Options
2. Select Regional Options tab. New window will open
3. In the new window, select the Time tab
4. In the Time Format box, select either [b]h:mm:ss:tt or hh:mm:ss:tt
5. Click OK twice to save the settings. If prompted to reboot, reboot.[/b]