KeyLemon adds some bio-security to a PC by introducing facial recognition as an alternative way to login to Windows: Although most users log in to Windows with a simple username and password, some other forms of getting into your computer's operating system are becoming popular and with the rise of mobile phone usage, face tracking software has become especially popular. 452 KB | For Windows 7, Windows 8 / Vista / XPFree KeyLemon Review - Download
Security tool that allows the Windows administrator to lock access to applications and other executable files: Application Locker is another tool in the sys admin toolbox, helping optimize your everyday work, and help you manage your system efficiently and productively. 711 KB | For Windows 7, Windows 8 / Vista / XPFree
KeyLock is an alternative to entering a password to unlock your PC and relies on inserting a USB drive to unlock the system. 5.4 MB | For Windows 7, Windows 8 / Vista / XPFree KeyLock Review - Download
Small tool locks your mouse and desktop when away and dims the desktop allowing only keyboard input: Mouse Lock is a small and useful little utility which is designed to lock your PC. 375 KB | For Windows 7, Windows 8 / Vista / XPFree Mouse Lock Review - Download
Free utility that locks the operating system with a password if you're away from the keyboard with a unique blurring effect: ScreenBlur will offer you the possibility to safely secure your desktop with a selected password. 68 KB | For Windows 7, Windows 8 / Vista / XPFree
Ensures that only authorized people can access sensitive information: WinLock is a comprehensive security solution for personal or publicly accessible computers. 4.43 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware
File and folder encryption utility that adds password protection to portable USB storage devices: USB Safeguard is a portable software program to encrypt and protect data with a password on your removable pen drives using the AES 256 bits encryption. 0.08 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
PC locking program that protects the operating system with a password and prevents access to defined actions and commands: WinLock is a comprehensive security solution for personal or publicly accessible computers. 4.52 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware
Lightweight utility that can lock the Windows desktop automatically or perform a shutdown if there's been no activity: Auto Lock is a very useful tiny little free program/app that will enable users to perform actions such as lock, log off, restart or shutdown for their desktop / laptop / tablet PCs when the device has not been used for a certain period of time. 80 KB | For Windows 7, Windows 8 / Vista / XPFree
ASUS SmartLogon is a program which can be used to lock your system and subsequently unlock it with ASUS' own facial recognition technology. 6.8 MB | For Windows 7, Windows 8 / Vista / XPFree ASUS Smart Logon Review - Download
Administration software that can restrict access to files, folders, web sites and specific applications installed on a PC: InTouch Lock is an administrative tool that can apply restrictions and locks to several aspects of the operating system. 3.04 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware InTouch Lock Review - Download
Locks your PC when you're away to keep from prying eyes from accessing private data or messing around: Shared PCs, friends over, kids messing about and other things can put your personal security at risk if they're given full access to your PC. 699 KB | For Windows 7, Windows 8 / Vista / XPFree WinLockr Review - Download
GINA replace for Windows that allows for custom authentication and access management for Windows systems: pGina is an alternate authentication system for Windows which can connect to a single OpenLDAP database. 1.4 MB | For Windows 7, Windows 8 / Vista / XPFree pGina Review - Download
Free locking software which uses patterns as passwords on Windows similar to smartphones like the iPhone: Eusing Maze Lock is software for Windows which enables you to lock your computer and then subsequently unlock it again with a maze password, similar to that of some cell phones. 808 KB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Eusing Maze Lock Review - Download
Privacy utility that can lock files and folders with password protection to prevent prying eyes: Master Guard is a data security solution for Windows. 2.2 MB | For Windows 7, Windows 8 / Vista / XPFree
Small encryption utility that can lock and add encryption to all types of files protected by a password: Predator locks your PC when you are away, even if your Windows session is still opened. 3 MB | For Windows 7, Windows 8 / Vista / XPFree
Locks your computer from the system tray for when you're AFK while logging failed login attempts: Most people use to leave their computers unattended. 165 KB | For Windows 7, Windows 8 / Vista / XPFree
Freeware desktop lock down software: Desktop Lock by Stardust is a very handsome and handy utility which can lock you desktop with one click. 1.09 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Stardust Desktop Lock Review - Download
Software to block unauthorized access via USB: USB Security by DESKI is a small security application which disallows access to your PC from unwanted or potentially malicious USB devices such as thumb drives which may contain malware. 7.87 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware DEKSI USB Security Review - Download
Internet connection management and blocking software that can block specific applications, schedule access windows and completely block users from web browsing: RiteVia Incharge is a software utility which gives control of a PC's Internet connection to the administrator with the option of blocking applications from using the Internet. 6.5 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree RiteVia Incharge Review - Download
Software to pattern lock your computer: For those wishing to add an extra level of security to their workstation or home office PC, XUS PC Lock is a great way to lock your computer screen along with an excellent, professional-looking skin. 1.23 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware XUS PC Lock Review - Download
Software to lock-down your PC: Deskman is a suite of security-related tools for locking down certain aspects of your Windows PC and allowing or disallowing normal users access to sensitive functions. 2.41 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Deskman Free Edition Review - Download