Windows Network Security Administration Software: The Lock (formerly known as The Lock XP) is a user auditing and monitoring tool for various versions of Windows including Windows XP, Windows 7 32-bit and indeed the newest 64-bit versions of Windows. 40.37 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware The Lock XP Review - Download
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
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
Award-winning, versatile and comprehensive security solution for home users and system administrators alike to restrict access to the PC and sensitive information on it. 3.04 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware
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
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
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
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 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
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
Locks specific Windows features and applications: Chris PC-Lock is a useful Windows application with keyboard locking functions. 2.78 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware
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
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
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
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
Lock Me is a new lock screen app for Windows with a user interface similar to the Windows 8 Metro theme and a second iOS-look. 8.9 MB | For Windows 7, Windows 8 / Vista / XPFree
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
Software to lock computers on a network: Lockdown Plus PC is a network based desktop security solution for publicly accessible computers running the Windows 2000/XP/Server 2003 Operating Systems. 1.64 MB | For Windows 7, Windows 8 / Vista / XP / NTShareware
Lock down software, Windows settings and dialogs: Desktop Patrol is a handy and simple application that allows you to restrict and block access to most of the computer's features including: access to software installation, Windows options, access to external media etc. 2.9 MB | 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
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
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