Your payroll tax or check data is important, then you should keep them safe and security. However, if you don’t have the habit of locking your PC manually then I seriously advise you to turn on system auto lock feature.
Micrsoft Windows system has password protect option in screen savers. If you have enabled this feature, the system would automatically lock itself as soon as the screen saver comes up. On resume, you will be asked for the password before you can enter.
1) Right click on the desktop -> Personalize -> Screen Saver.
2) If you are using Vista, check the box which says ‘On resume, display logon screen‘ or else in Windows XP this would be ‘On resume, password protect‘.
3) Save and close. Next time you move out of your PC it will lock itself after the time you have mentioned in the screen saver settings.
