Windows Defender Error

Support for solving errors in Windows® Defender

What are the various errors that can occur while using Windows® Defender?

Windows® Defender is a freeware application promoted by Microsoft® to help your computer system stay clean from spyware and keep your productive time to the maximum by protecting your Windows® enabled computer against pop-ups and security threats caused by adware, malware, spyware and other unwanted malicious software. With the rapid growth of the Internet and the Microsoft® Windows® OS, network security has become a major concern to many individuals and organizations throughout the world. There are a countless number of tools and are widely available that may used to compromise your network security. Windows® Defender is a security solution that protects your PC from spyware. You may encounter various issues with the Microsoft® Windows® Defender application.

This article explains you the various issues under the following heads:

  • Update Errors

  • Startup Error

  • Problems with full scan

Update Errors

There is a common update error encountered by Windows® Defender. The error message says that “Windows® Defender was unable to complete the update: 0x8024402c.” This is a common, but easy to solve and a trivial problem encountered across almost all Windows®-based computing platforms and is caused by non installation of “critical marked” updates via Windows® automatic update feature. All you need to do is install the critical updates. If you encounter a problem via your office network while downloading updates for your official computer, you need to ask the server administrator to enable defender updates to be distributed.

Startup Error

An often encountered but not easily corrected startup error is the 0x800106ba error code for Windows® Defender. It is quite possible that you may have been experiencing this very same error when trying to change start-up programs for quite a while now. The root cause for this error is a bit complex. This is because by design the Microsoft® software explorer stops Windows® Defender from executing in order to avoid a design flaw that causes a conflict with the Windows® Defender. To resolve this issue, you will need to disable the Windows® Defender services on Windows Vista®. If you are running Windows® XP, you will need to completely uninstall the Windows® Defender services. This is because of an inherent software design flow and there are currently no available patches for resolution of this problem.

Problems with full scan

When your system has not undergone routine maintenance for a while, it may experience that the Windows® Defender is taking too long to execute an automatically scheduled scan. This issue occurs for a highly fragmented hard disk drive and primarily occurs due to the existence of a large number of temporary Internet files, cookies, and other temporary files. To resolve this issue, it is recommended to remove all these files and disable and then re-enable the Windows® Defender service before you schedule a scan for the system. Also, updating the definition pack before you perform a full scan to remove the latest spyware would help.

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