In today's digital age, system security is paramount. Ensuring that your Windows environment is secure can protect your data from unauthorized access, malware, and other security threats. This article will guide you through various methods to enhance system security on a Windows operating system. We will cover topics such as user account control, firewall settings, and the use of PowerShell scripts to automate security tasks.

Examples:

1. User Account Control (UAC) Settings:
User Account Control (UAC) helps prevent unauthorized changes to your computer. To adjust UAC settings, follow these steps:

• Open the Control Panel.


• Navigate to "System and Security" > "Security and Maintenance".


• Click on "Change User Account Control settings".


• Adjust the slider to the desired level of security. The highest level will notify you every time an app tries to make changes to your computer.

2. Configuring Windows Firewall:
Windows Firewall is a built-in feature that helps protect your computer from unauthorized access. To configure it:

• Open the Control Panel.


• Navigate to "System and Security" > "Windows Defender Firewall".


• Click on "Turn Windows Defender Firewall on or off".


• Ensure that the firewall is turned on for both private and public networks.

3. Using PowerShell to Automate Security Tasks:
PowerShell is a powerful scripting language that can be used to automate various security tasks. Below is an example of a script that checks for and installs Windows updates:

   # Check for updates

   Install-Module PSWindowsUpdate

   Get-WindowsUpdate



   # Install updates

   Install-WindowsUpdate -AcceptAll -AutoReboot

To run this script:

• Open PowerShell as an administrator.


• Copy and paste the script into the PowerShell window.


• Press Enter to execute the script.

4. Setting File Permissions with ICACLS:
ICACLS is a command-line utility that can be used to modify file and folder permissions. Here is an example of how to grant full control to a user for a specific folder:

   icacls "C:\ExampleFolder" /grant UserName:F

To run this command:

• Open Command Prompt as an administrator.


• Replace "C:\ExampleFolder" with the path to your folder and "UserName" with the actual username.


• Press Enter to execute the command.