Add PowerShell Disable-Defender docs

docs/powershell/disable-defender.md

@@ -0,0 +1,57 @@
+---
+id: '3e5e318a-85f8-408f-81fb-509c5afe18c9'
+slug: /3e5e318a-85f8-408f-81fb-509c5afe18c9
+title: 'Disable Defender'
+title_meta: 'Disable Defender'
+keywords: ['Windows Defender', 'SentinelOne', 'antivirus', 'real-time protection']
+description: 'Disables Windows Defender real-time protection when a supported third-party antivirus service is detected.'
+tags: ['security']
+draft: false
+unlisted: false
+last_update:
+  date: 2025-06-04
+---
+
+## Description
+
+Disables Windows Defender real-time protection when a supported third-party antivirus service is detected. If Defender is already disabled, no action is taken.
+
+## Requirements
+
+- PowerShell 5+
+- Administrative privileges
+
+## Process
+
+1. Checks for the presence of a supported third-party antivirus service (currently SentinelOne).
+2. If no supported AV service is found, exits without changes.
+3. Queries Windows Defender real-time protection status.
+4. If Defender is already disabled, exits without changes.
+5. Disables Defender real-time protection.
+
+## Usage
+
+Checks for SentinelAgent service and disables Defender if it is enabled.
+
+```powershell
+.\Disable-Defender.ps1
+```
+
+## Supported Antivirus Products
+
+| Product      | Service Name   |
+|--------------|----------------|
+| SentinelOne  | SentinelAgent  |
+
+Additional products can be added to the `$supportedAVServices` array in the script.
+
+## Output
+
+    .\Disable-Defender-log.txt
+    .\Disable-Defender-error.txt
+
+## Changelog
+
+### 2025-06-04
+
+- Initial version of the document