Windows Defender turned OFF and I can't turn on. Is it because I have downloaded Windows Security Essential? If so, how can I uninstall Windows Defender, and then reinstall it.

My Windows Defender turned OFF and I can't turn on.

Is it because I downloaded Windows Security Essentials?

If yes how can I uninstall Windows Defender from my computer because it does not show in the control panel

Hello

MSE disables by default the Defender

and no you can not uninstall then reinstall the Defender

It is part of the vista operating system

read this information on the Defender:

·                         If you use microsoft security essentials avg avira mcafee norton etc they disable the vista version of windows defender by default

the basics of Microsoft security has its own version of windows defender

and other anti-virus programs use their own particular type of application to scan for spyware and malware

It of nothing to worry and is the default action, which is designed for them to do

and if you need to change startup programs read this information on the other methods of doing it without using defender

using msconfig read this tutorial;

How to use MSCONFIG in Windows Vista

Here's how to use MSCONFIG in Windows Vista to disable some unnecessary programs that load automatically at startup

http://netsquirrel.com/Msconfig/msconfig_vista.html

and also try this program;

This utility, which has a knowledge of auto-starting locations of any startup monitor, shows you what programs configured to run at system startup or login and that the entries in the order of processing windows. These programs include those in your startup folder, Run, RunOnce, and other registry keys. You can configure Autoruns to show other locations, including Explorer shell, toolbar extensions, helper objects to the browser, Winlogon notifications, auto and many start-up services more

http://TechNet.Microsoft.com/en-us/sysinternals/bb963902

Tags: Windows

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