Virus-Proof Your Computer with AppLocker” : “Ultimate Guide: Virus-Proof Your Computer with Windows AppLocker

By | August 19, 2023



Virus-Proof Your Computer: The Ultimate Guide to Windows AppLocker

How to Virus-Proof Your Computer With Windows AppLocker (Ultimate Guide)

In today’s digital age, the threat of computer viruses is ever-present. Malicious software can wreak havoc on your computer, compromising your personal information, and causing irreparable damage. However, with the right tools and knowledge, you can protect your computer from these threats. One such tool is Windows AppLocker, a powerful security feature that allows you to control which applications can run on your computer. In this ultimate guide, we will explore how to virus-proof your computer using Windows AppLocker.

What is Windows AppLocker?

Windows AppLocker is a built-in security feature in Windows 7, 8, and 10 that allows system administrators to control which applications can run on a computer. It provides granular control over the execution of applications by defining rules based on file attributes such as publisher, path, file hash, or file extension. By using AppLocker, you can prevent unauthorized and potentially malicious software from running on your computer.

Step 1: Understand the Basics of AppLocker

Before diving into the setup process, it is essential to understand the basics of AppLocker. AppLocker uses a set of rules to determine which applications can run and which are blocked. These rules are organized into five categories: Executable rules, Windows Installer rules, Script rules, Packaged app rules, and Packaged app install rules. Each rule category allows you to define specific criteria for allowing or blocking applications.


Step 2: Enable AppLocker

To start using AppLocker, you need to enable it on your computer. Open the Local Group Policy Editor by pressing the Windows key + R and typing “gpedit.msc.” Navigate to “Computer Configuration” -> “Windows Settings” -> “Security Settings” -> “Application Control Policies” -> “AppLocker.” Right-click on “AppLocker” and select “Properties.” Check the “Configured” option under “Executable Rules,” “Windows Installer Rules,” “Script Rules,” “Packaged app rules,” and “Packaged app install rules.” Click “OK” to enable AppLocker.

Step 3: Create AppLocker Rules

Once you have enabled AppLocker, it’s time to create rules to control which applications can run on your computer. There are different types of rules to choose from, depending on the application you want to allow or block. For example, if you want to block a specific executable file, you can create an “Executable Rules” rule and specify the file path or hash. To create a rule, right-click on the corresponding rule category and select “Create New Rule.” Follow the wizard to define the rule criteria and apply it.

Step 4: Test and Refine Rules

After creating the initial set of rules, it is crucial to test them to ensure they are functioning as intended. Try running applications that fall under the defined rules. If an application is allowed to run, the rules are working correctly. However, if an application is blocked, you may need to refine the rules. To refine rules, right-click on the rule category and select “Properties.” Adjust the rule criteria, such as adding more file paths or hashes, until the desired outcome is achieved.

Step 5: Monitor and Maintain AppLocker

Once you have set up AppLocker and defined the necessary rules, it is essential to monitor and maintain its effectiveness. Regularly review the event logs and reports generated by AppLocker to identify any unauthorized attempts to run applications. Additionally, keep the rules up to date by periodically reviewing and updating them as needed. As new applications are installed or updated on your computer, ensure that the appropriate rules are in place to allow them to run.


Computer viruses can cause significant harm to your computer and compromise your personal information. With Windows AppLocker, you can take control of the applications that run on your computer, significantly reducing the risk of malware infections. By following this ultimate guide, you can virus-proof your computer using AppLocker’s powerful security features. Remember to enable AppLocker, create rules, test and refine them, and regularly monitor and maintain the system. With these steps, you can enjoy a safer and more secure computing experience.

How to Virus-Proof Your Computer With Windows AppLocker (Ultimate Guide)


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  2. Windows AppLocker
  3. Computer security