Quietly remove the Windows Security Essential
@echo off if exist "%ProgramFiles%/Microsoft Security Essentials" ( START /wait "Uninstalling MSE" "%ProgramFiles%/Microsoft Security Essentials/setup.exe" /x /s ) else ( if exist "%ProgramFiles%/Microsoft Security Client" ( START /wait "Uninstalling MSE" "%ProgramFiles%/Microsoft Security Client/setup.exe" /x /s ) else ( exit ) ) )
After this script, you may still have a red MSE icon in the task bar, which means there was a incomplete uninstallation, create another script to do this:
TASKKILL /f /im MsMpEng.exe TASKKILL /f /im msseces.exe TASKKILL /f /im MpCmdRun.exe net stop MsMpSvc sc delete MsMpSvc REG DELETE "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\MsMpSvc" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft Antimalware" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft Security Client" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Microsoft Antimalware" /f REG DELETE "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Current Version\Run\MSC" /f REG DELETE "HKEY_CLASSES_ROOT\Installer\Products\4C677A77F01DD614880F352F9DCD9D3B" /f REG DELETE "HKEY_CLASSES_ROOT\Installer\Products\4D880477777087D409D44E533B815F2D" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Microsoft Security Client" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{774088D4-0777-4D78-904D-E435B318F5D2}" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{77A776C4-D10F-416D-88F0-53F2D9DCD9B3}" /f REG DELETE "HKEY_CLASSES_ROOT\Installer\UpgradeCodes\1F69ACF0D1CF2B7418F292F0E05EC20B" /f REG DELETE "HKEY_CLASSES_ROOT\Installer\UpgradeCodes\11BB99F8B7FD53D4398442FBBAEF050F" /f REG DELETE "HKEY_CLASSES_ROOT\Installer\UpgradeCodes\26D13F39948E1D546B0106B5539504D9" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\4C677A77F01DD614880F352F9DCD9D3B" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\4D880477777087D409D44E533B815F2D" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes\11BB99F8B7FD53D4398442FBBAEF050F" /f REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes\1F69ACF0D1CF2B7418F292F0E05EC20B" /f takeown /f "%ProgramData%\Microsoft\Microsoft Antimalware" /a /r takeown /f "%ProgramData%\Microsoft\Microsoft Security Client" /a /r takeown /f "%ProgramFiles%\Microsoft Security Client" /a /r REM Delete the MSE folders. rmdir /s /q "%ProgramData%\Microsoft\Microsoft Antimalware" rmdir /s /q "%ProgramData%\Microsoft\Microsoft Security Client" rmdir /s /q "%ProgramFiles%\Microsoft Security Client" REM Stop the WMI and its dependency services sc stop sharedaccess sc stop mpssvc sc stop wscsvc sc stop iphlpsvc sc stop winmgmt REM Delete the Repository folder. rmdir /s /q "C:\Windows\System32\wbem\Repository" sc stop PAUSE EXIT