Windows defender permision

Anonymous
2018-05-19T16:42:00+00:00

Your IT administrator has limited access to some areas of this app,and the item you tried to access is not available . Contact IT helpdesk for more information.

this is the message I get when I try to scan a drive using windows defender(right click and scan using windows defender option).

windows specification:

edition:windows 10 home

version:1803

os build:17134.48

device specification:

hp envy x 360 convertible

Windows for home | Windows 10 | Security and privacy

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous
2018-11-02T06:18:38+00:00

Hi Michael,

I believe that your IT department is right.

It is probable that the problem in v1803 is associated with the "Periodic Scanning"

button. Please see my posts in this thread for August 27 and 28.

I think there is a fault in v1803, that leaves only some PCs without a functioning

periodic scanning button.

In other threads, some have had this same problem, and their button was turned on.

Yet, when they uninstalled their third party anti-virus, there problem was corrected.

A functioning periodic scanning button allows Windows Defender to work in concert

with third party anti-virus programs.

EDIT:

I did not have this link in hand when I first replied to your post.

This link is my case in point.

Andrew had the same problem, that was originally expressed in this thread.

He had also been successfully running a third party security program, in concert with

Windows Defender, until W10 v1803 was installed. And his periodic scanning button

was turned "ON".

https://answers.microsoft.com/en-us/protect/forum/all/why-is-scan-with-windows-defender-blocked-by-it-on/33f9ab1b-673d-4eb9-8119-ce0d92a2cd83#

Pay particular attention to the second page of his thread. 

Regards,  Glen

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  1. Anonymous
    2018-07-15T03:46:03+00:00

    I too am having this exact fault.

    In addition to this, when I try to update, I run into the following error:

    Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.271.1003.0) - Error 0x80070643

    I dug around and thought this may be because of corrupt data. Having run CHKDSK I can see this isn't the case.

    On the off-chance that either 'Spybot Search and Destroy' or 'SUPER ANTI SPYWARE' would be throwing a spanner in the works, I've uninstalled these.

    I've checked the group policy and ensured that option 'Turn off real-time protection' is set to 'Disabled'.

    https://answers.microsoft.com/en-us/windows/forum/windows\_10-update/definition-update-for-windows-defender-antivirus/a2537eca-c477-43d2-9dfd-4642d0799880

    I've gone through all the troubleshooting in this thread too.

    The Windows Update Troubleshooter did detect some faults which were fixed, but the definition update is still failing to install.

    Realtime protection is still greyed out. When I right click the Windows Defender Notification Icon and click 'Run Quick Scan' I continue to encounter the original error 'Page not available' etc.

    Following the troubleshooting tips on: https://answers.microsoft.com/en-us/protect/forum/mse-protect\_start/installation-error-0x80070643/908fad3e-f9fc-4d8a-be83-ae7d3bc48db5

    I already have the Windows Installer service running

    I'm about to try Selective Startup.

    The links on that page don't work but I'm assuming it's referring to 'Diagnostic startup' from within MSCONFIG ?

    If anyone has any other tips, I'm all ears.

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  2. Anonymous
    2018-06-27T23:01:39+00:00

    This started happening to me right after I installed the big April update.  Workaround that worked for me is to go into Task Manager under Background Processes and close the Windows Defender Notification .  When the icon disappears from the system tray, go to c:\Program Files\Windows Defender and open MSASCuiL.exe.  Then the system tray icon returns with the green check mark.

    But when I restart the computer I get the red x again, so I have to go through this all over again each time I restart. 

    Please fix this, Microsoft!

    I have experienced the same problem when, on June 24, 2018, I did a clean reinstall of Windows 10 Home edition from Microsoft's current .ISO.  (After the Windows 10 reinstall was complete I reinstalled "Norton Security" but the issue is apparently not specific to a particular anti-virus program). 

    Multiple others have experienced this problem.  Yes, Mircosoft, please fix this.

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  3. Anonymous
    2018-05-30T13:39:03+00:00

    Same here, started happening after april update and confirmed this works for me. Also have Bitdefender security suite, not using microsoft's. All was fine until April update.

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  4. Anonymous
    2018-05-23T23:57:14+00:00

    This started happening to me right after I installed the big April update.  Workaround that worked for me is to go into Task Manager under Background Processes and close the Windows Defender Notification .  When the icon disappears from the system tray, go to c:\Program Files\Windows Defender and open MSASCuiL.exe.  Then the system tray icon returns with the green check mark.

    But when I restart the computer I get the red x again, so I have to go through this all over again each time I restart. 

    Please fix this, Microsoft!

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