In Windows 8, Windows Defender is a built in antivirus software product that replaces Microsoft Security Essentials. Before Windows 8, Windows Defender featured antispyware capabilities and was not offering antivirus protection.

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Windows defender gives error message on windows startup

When I first start up windows, I get this error message every time: Application failed to initialize: 0x80070006. The handle is invalid. Anyone got any ideas what might be causing it, or ...
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1answer
144 views

How can I fix Windows Defender error code in Windows 8.1?

Windows Defender is giving me an error code 0x80073b01 and it will not start. I am not sure if this is caused by the OS language change that I did recently but I did a scan for virsuses with Norton ...
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160 views

Windows defender thread using 100% CPU

The problem is the following - a thread of windows defender hangs and consumes 100% of one core (viewed with process explorer). It happens only when there is InPrivate IE instance running. The result ...
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1answer
24 views

Allow Windows Defender to update automatically but not Windows

Windows 8. (Not Windows 8.1) I have Windows Update set to check for updates but not install them automatically. I get nearly daily notifications from Windows Update to install Defender updates. Can I ...
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0answers
403 views

Windows 8 Action Centre Keeps Reminding Me To Turn Virus Protection On

I have not installed any anti-virus software on my Windows 8 as I think that Windows Defender is enough to keep my system protected from any virus attack. However, sometimes my Action Center shows to ...
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0answers
13 views

MP Scheduled Scan starting very late, only during usage

In Windows 8.1, (and, I think, 8, 7, and Server going back to 2008) Windows Defender gets started daily by the MP Scheduled Scan task. It is by default set to run when the computer is not in use and ...
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44 views

Always ignore eicar test virus for Windows Defender on Win 8.1

I'm a developer and my software is able to scan processed files on demand with a configured virus scanner, if configured. To test this I have different copies of the eicar test virus in different ...
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94 views

No local disk (:C) in Remote Desktop Connection after update of Windows defender

I can not see my local disk (:C) in a Remote Desktop Connection. The local disk drive is selected in Local devices and resources under More under Local resources. I have used the local disk in remote ...
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20 views

I can't start Windows Defender from the main menu

After clicking on Windows Defender in the main menu, I get the following message: application failed to initialize:0x80070006. Handle is invalid
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46 views

windows defender stuck at obexsrv.exe

From the past few days Chrome on my windows laptop (running windows 7) was running rather slowly. I looked at chrome://plugins and found that it had some conflicting plugins. I disabled them and ...