Windows defender invalid handle vista




















Greatly appreciated. Worked great! This was a great easy fix. This fix was invaluable espeically since Microsoft just bureeaucratically instructed me online to run FixIt but woulodn't explain how to reinstall useless defenbder.

Worked for Win7 like a charm. Wow, if I hadn't read all the positive comments I would have never tried it. I am amazed. For the first time I finally found something that actually worked and it worked like a champ. Thanks man for this awesome step-by-step info. I still can't believe it. Thanks again Nibbishment, You Rock!!! I did what you said but it still didn't work, said there was either a system error or file error.

Still not fixed. Is there any way of finding the system error or file error so I can do your fix? Now just to get the Firewall working. Don't get me wrong, Defender is decent software if a bit unremarkable, I use it more for detection that actual removal, since I haven't seen it remove all that many things that Spybot, Adaware, or HiJackThis weren't able to root out , but streamlining it into the system has the disastrous side effect of making it: a Impossible to remove, should you not want to use it b Extremely difficult to troubleshoot or repair, should there ever be a problem with it I recently had to use System Restore, due to a poorly created MSI file I decided to test on my machine.

In the Registry Editor, click File menu, and click Export. Click Save. When you receive a message box asking "Are you sure you want to add the information in the REG file to the registry", choose "Yes" 7. Restart the computer. The process worked for me. Let me know if it works for you. Anonymous August 10, at PM. Anonymous February 11, at PM. Anonymous February 15, at PM.

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Anonymous August 12, at AM. Anonymous August 12, at PM. Anonymous August 18, at PM. What is Windows Defender? Windows Defender is a free program from Microsoft that helps protect your computer against pop-ups, slow performance, and security threats caused by spyware and other unwanted software.

For more information, see Windows Defender helps remove spyware from your computer. Include your email address to get a message when this question is answered. If you are using a third party malware protection software, it is often recommended that you disable Windows Defender to prevent conflicts.

Helpful 0 Not Helpful 0. Windows Defender can only handle malware in the original version of Windows Vista. Defender never was able to handle viruses in the original version. For that, you had to run a third-party software to scan for viruses.

However, after much adieu from its users, Microsoft decided later to give its users on Windows Vista some virus scanning support in their product. They later came out with Microsoft Security Essentials that protected its users from viruses, disabled the installation of this Windows Defender and moved it into a back door position that could never be used unless the person uninstalled Security Essentials - as two malware programs running at once can conflict each other.

Submit a Tip All tip submissions are carefully reviewed before being published. Turning off Windows Defender exposes your computer to various threats and should never be done unless you run a third party malware protection software. You Might Also Like How to. How to. Co-authors: 3.

Updated: September 16, Categories: Windows Computer Virus Protection. Log in or Sign up. Com Support Forums. Windows Defender Application failed to initialize: 0x The handle is invalid.

Hi everyone, My laptop was recently infected with a virus that hijacked my browser and started this wau. I was able to remove the infection using Malwarebytes but afterwards, every time I start up the computer, I get this message: Windows Defender Application failed to initialize: 0x I can't start it manually and I don't know if this is because the virus turned it off or removed something from defender.



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