Settings _hot_: Windows Update Registry

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU] "NoAutoUpdate"=dword:00000000 "AUOptions"=dword:00000004 "ScheduledInstallDay"=dword:00000000 "ScheduledInstallTime"=dword:00000003 "NoAutoRebootWithLoggedOnUsers"=dword:00000001

You can copy and paste this directly into a document (Word, Google Docs, etc.) and adjust the header details as needed. Configuration and Analysis of Windows Update Registry Settings Prepared For: [IT Department / Client Name] Date: [Current Date] Version: 1.0 1. Executive Summary This report documents the critical registry settings that govern Windows Update behavior. Modifying these settings allows administrators to control automatic updates, target specific update rings (e.g., Semi-Annual Channel), manage restart policies, and configure update source locations (e.g., WSUS). Improper configuration may lead to security vulnerabilities or system downtime. 2. Primary Registry Location All Windows Update settings reside under the following registry key: windows update registry settings

| Value Name | Type | Effect | | :--- | :--- | :--- | | DeferQualityUpdates | REG_DWORD | 1 = Defer quality (security/monthly) updates. | | DeferQualityUpdatesPeriodInDays | REG_DWORD | Days to defer quality updates (0-30+). | | DeferFeatureUpdates | REG_DWORD | 1 = Defer feature (annual) updates. | | DeferFeatureUpdatesPeriodInDays | REG_DWORD | Days to defer feature updates (0-180+). | | BranchReadinessLevel | REG_DWORD | 16 = Semi-Annual Channel (Targeted). 32 = Semi-Annual Channel. | Objective: Auto-install security updates daily at 3 AM, lock Windows version to 22H2, use WSUS. Primary Registry Location All Windows Update settings reside

Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate] "UseWUServer"=dword:00000001 "WUServer"="http://wsus.domain.local:8530" "WUStatusServer"="http://wsus.domain.local:8530" lock Windows version to 22H2

Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\*" Get-WindowsUpdateLog # Generates a readable log file Most Windows Update registry changes require a restart of the Windows Update service :