Have you received the error, “Windows Defender. Application failed to initialize 0x800106ba”? Windows Defender can fail if there’s interference from another security application, because Defender itself stops or because its components are corrupted. Try the following tips to get Defender working again.
Did you install any new programs recently? If you have other security applications running alongside Defender, you may see conflict when the programs both try to protect your computer at the same time.
If you have another full protection security application running, you may want to consider keeping Defender disabled.
If you have no security program interference, perform the following steps to resolve the issue.
Step One: Click Start and type services.msc in the Start Search Box. Press Enter. Provide an administrator password if prompted
If verification fails to restore Defender, uninstall and reinstall Defender here is what you need to do:
Step One: Click Start, click Run and type appwiz.cpl in the box. Click OK.
Step Two: Click Windows Defender and then Remove.
Step Three: Follow the prompts to Uninstall.
Step Four: Now download and reinstall Windows Defender. Follow the installation prompts to complete your reinstall. Once finished, launch Defender to check for errors.
If verifying or uninstalling and reinstalling Windows Defender didn’t resolve your issue, you’ll need to register DLL files related to Defender.
Once you follow the steps to resolve your Defender application issue, you should be able to run the program without errors. If you encounter the error again with a future update of Defender or its associated program Action Center, repeat these steps to get Defender up and running again.
If you are still having trouble please leave a comment below.
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