Windows Security Check Script

A comprehensive PowerShell script to assess and report on the security configuration of Windows 10 and Windows 11 systems.

Table of Contents

• Overview
• Features
• Prerequisites
• Usage
• Parameters
• Sample Output
• Customization
• Contributing
• License

Overview

This script performs a series of security checks to evaluate the security posture of a Windows system. It covers firewall status, antivirus status, Windows Update, account policies, audit policies, unnecessary services, network settings, installed software vulnerabilities, drive encryption, browser security settings, and domain-specific checks if applicable.

Features

• Checks Windows Firewall status for all profiles.
• Verifies antivirus status and definitions.
• Ensures Windows Update service is running and checks for pending updates.
• Evaluates account lockout and password policies.
• Checks audit policies for security events.
• Identifies and reports unnecessary services.
• Assesses network security settings, including protocols and services.
• Reviews firewall rules for potential security risks.
• Detects administrative shares.
• Scans for installed software with known vulnerabilities.
• Checks drive encryption status (BitLocker or Device Encryption).
• Verifies browser security settings (e.g., SmartScreen in Edge).
• Performs domain-specific checks for domain-joined systems:
  • Domain controller connectivity.
  • Group Policy compliance.
  • VPN connection status.
  • Network share permissions.
  • Required domain software installation.

Prerequisites

• Operating System: Windows 10 or Windows 11.
• PowerShell Version: 5.1 or later.
• Administrative Privileges: Run the script as an administrator.
• Execution Policy: Set to allow running scripts (e.g., RemoteSigned).

Usage

1. Download the Script:

   Clone the repository or download the Check-WindowsSecurity.ps1 script.

2. Run PowerShell as Administrator:

   Open PowerShell with administrative privileges.

3. Set Execution Policy (if necessary):

   Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser