A. A. There are 2 ways to configure this.

The first is using the Regional Control Panel applet

  1. Start the Regional control panel applet (start - settings - control panel - regional settings)
  2. Select the time tab
  3. HH in capitals means 24 hour, hh (lowercase) means 12 hours
  4. Click Apply then OK

The second is to directly edit the registry

  1. Start the registry editor (regedit.exe)
  2. Move to HKEY_CURRENT_USER\Control Panel\International
  3. From the Edit menu select New - String
  4. Enter a name of iTime
  5. Double click and set to 0 for 12 hours and 1 for 24 hours. Click OK
  6. Close the registry editor
  7. Logoff and on again