One of my users suddenly started experiencing this problem on their WinXP SP2 laptop. During system startup they would get the following error message:
Application failed to initialize: 0x800106ba . A problem caused Windows Defender Service to stop. To start the service restart the computer or search help and Support on how to start a service manually.
Not sure what caused this, but it seemed to appear straight out of the blue. In fact I think the guy started complaining about a “weird error message” some time on Wednesday, but was unable to actually tell me the text of the error or show it to me till today. Since it popped up on Wednesday, I’m guessing that Patch Tuesday really messed up some Win Defender dependencies or screwed with it’s dlls.
Either way, here is how you fix it:
- Go to Control Panel and completely remove Defender
- Download a fresh copy from Microsoft
- Install it, and get on with your day
Please note that the repair feature available in the Uninstaller did not work for me. You have to do full remove and full installation to get it working.
[tags]windows, windows defender, defender, error, 0x800106ba[/tags]
THANK-YOU- I have suffered the Ox800106ba for months- tried everything-no effect until I came across your solution- Thanks
Glad I could help. :)
Hi,
I can’t even find windows defender in the uninstall list! Any ideas as to where it might be? Is it in another program or should it just be there? That pop up is driving me nuts!