Windows Defender is a free Spyware/Malware active scanner Microsoft shipped with their latest client Operating System, Windows Vista (you can download here for XP). Vista enables Windows Defender by default, which is OK unless you’re using another product like Spybot (my fav). Recently in my forum, a user asked How To Disable Windows Defender, so I figured it would make a helpful How-To write-up. Just follow the simple steps below.
Disable Windows Defender:
1. Double Click on the Windows Defender Icon in your Taskbar
1a. Another simple way to open Windows Defender is to: Click the Windows Start button and Type Defender in the Start Search Text box then Press the Enter key.
2. Click Tools then Click Options
3. Scroll to the bottom of the Options and uncheck the box Use Windows Defender. Click Save to exit and save changes
4. Click Close
Now for most users, this should be sufficient to disable Windows Defender. There is, however, another step you can take to remove Windows Defender from your system startup. Feel free to take a look now at this groovy How To article.
Tags: client, howto, vista, security, windows defender
i disabled already at startup doing wat ive seen on the tutorial on disabling from startup but when i reboot, still shows .. sumthin’ is wrong… this is weird? could it be a virus??
@Roel Piedad – Welcome to the site!
One last thing you could try is disabling the Defender Service. To do this, Check out this article I just wrote: https://www.groovypost.com/howto/microsoft/vista/disable-windows-defender-service-in-windows-server-2008-or-vista/
Looking back, this is probably the best way to disable the Windows Defender Service. Hopefully this fixes your problem.
Defender is a good idea… however it really taxes the performance of your pc (especially when gaming) GTA4 runs great on my pc until I turn on defender then it’s glicthey
I recently purchased a new laptop HP G60-115EA/EM. As usual with all new computers you want it to be secure, so i purchased Sophos Anti-Virus and McAfee SecurityCentre. Now everytime I startup my laptop, an error message comes up. The error message says:
“Application failed to initialize: 0x80010ba. A problem caused Windows Defender service to stop. To start the service, restart computer or search help and support on how to start a service manually.”
it would be greatly appreciated if anyone could offer any assistance .
@waz: This will occur if *something* has disabled the Windows Defender service however the application is still scheduled to start in Vista Startup. This was discussed here on groovypost here: https://www.groovypost.com/forum/windows-vista/windows-defender-application-failed-to-initialize-t95517.html
To fix this problem, just follow the How-To here:
This will remove Windows Defender from Startup and you shouldn’t get the error any longer. If however you want to USE Windows Defender, you will probably need to configure Sophos or McAfee to not disable Vista Defender but rather disable the Spyware app. from those applications. Hope that helps ya!
My screen looks different after pressing options… :|
Therefore I still don’t know hoe to turn it off.
Hi Joe are you running Vista or Windows 7?
Hey, I’m running Vista 64 bit
Go into the forum – https://www.groovypost.com/forum/ and create a topic in the Vista forum. Take a screenshot of your options page and attach it to the new topic you create so I can see what were dealing with.
Error message 0x800106ba on defender, immediately after the taskbar completes I get a (!) on defender and have a very difficult turning it back on. How can I fix this?
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