Fonte: <a href="http://gallery.technet.microsoft.com/scriptcenter/Dos-Command-Line-Batch-to-fb07b159">http://gallery.technet.microsoft.com/scriptcenter/Dos-Command-Line-Batch-to-fb07b159</a>
@echo off
cls
REM ==================================================================================
REM DESCRIPTION : This script resets all of Windows Update Agent settings.
REM AUTHOR : Luca Fabbri
REM VERSION HISTORY: 1.2 - Stop SMS Host Agent (SCCM Client) Service added
REM 1.0 - Start
REM ==================================================================================
@echo 1. Stopping Automatic Updates, BITS and SMS Host Agent Services...
net stop wuauserv
net stop bits
net stop ccmexec
@echo 2. Deleting AU cache folder and log file...
del /f /q %SystemRoot%WindowsUpdate.log
del /f /s /q %SystemRoot%SoftwareDistribution*.*
REM @echo 2. Renaming AU cache folder and log file...
REM ren %SystemRoot%WindowsUpdate.log %SystemRoot%WindowsUpdate.bak
REM ren %SystemRoot%SoftwareDistribution %SystemRoot%SoftwareDistribution.bak
@echo 3. Re-registering DLL files...
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32atl.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32jscript.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32msxml3.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32softpub.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32wuapi.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32wuaueng.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32wuaueng1.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32wucltui.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32wups.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32wups2.dll
%SystemRoot%system32regsvr32.exe /s %SystemRoot%system32wuweb.dll
@echo 4. Removing WSUS Client Id...
REG DELETE "HKLMSOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdate" /v AccountDomainSid /f
REG DELETE "HKLMSOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdate" /v PingID /f
REG DELETE "HKLMSOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdate" /v SusClientId /f
@echo 5. Starting Automatic Updates, BITS and SMS Host Agent Services...
net start ccmexec
net start bits
net start wuauserv
@echo 6. Forcing AU discovery...
wuauclt /resetauthorization /detectnow
