If you have more than one Windows user account on your computer, you can specify which users you'd like to monitor.
Monitor current user only - choose this option to monitor only the user account, where you have installed a keylogger.
Monitor all users - enables monitoring of all users of this computer. Requires Administrator rights to apply.
You may be interested to exclude some users from monitoring - yourself for example. This option is active only when "Monitor all users" is selected. Click "Exclude selected users from monitoring", then select which users you don't need to monitor.