Windows 10: Windows Defender multiple issues

Discus and support Windows Defender multiple issues in Windows 10 Support to solve the problem; Hi, I'm trying to use Windows Defender as my defense solution because I'd like to use the Controlled Folders feature, but am having a few problems.... Discussion in 'Windows 10 Support' started by danannn, May 29, 2018.

  1. danannn Win User

    Windows Defender multiple issues


    I'm trying to use Windows Defender as my defense solution because I'd like to use the Controlled Folders feature, but am having a few problems.

    System is on 1709 x64 16299.431. No other antivirus, firewall or anything of note running.

    First, the most annoying one: after activating Windows Defender, my system often gets stuck with the "Windows Module Installer Worker" process consuming an entire core worth of processing (plus some disk usage) and it just won't finish what it is doing until a reboot or I kill the process. I understand Windows Defender might be trying to update, but it's getting stuck maybe. This happens more often when waking from sleep/hibernate.
    Note that I have Automatic Updates disabled via GPO, as well as automatic drivers updates disabled. The offending process never shows up arbitrarily like this when I have Defender disabled, and during normal Windows Updates it takes my system just a minute or two to finish its job. I'm confident this problem is related to Windows Defender, and only happens when it is activated.
    This would be a deal-breaker to using Windows Defender for me, so I hope to find a fix.

    Second: I'm trying to protect some entire drives from the root (D:\, E:\, ...) but it doesn't seem to work (as in, protect them from writes). I have an unlisted program I'm using to try saving files, and the writes are successfully blocked if I add specific folders to the list of Protected Folders (e.g. D:\foldername), but have no effect on drive roots.

    Third: I'd very much like to remove some of the default folders from the Protected Folders list. After some searching, I realize this is by design from MS, but it's a nuisance for my use case. Does anyone know of a way to hack them off?

    Alternatively: does anyone know of a simpler solution to block read/write access from unlisted programs to specific folders? I'd rather not use Windows Defender at all, really.

    danannn, May 29, 2018
  2. Arul_D Win User

    Installing Apps on Windows 10 Has Windows Defender Finding Malware

    Hi Tommy,

    Welcome to the Microsoft Community.

    • Is this issue specific to third party apps?
    I would suggest you to open Windows defender and add exclusions and check if it helps. Follow the steps to add exclusions in windows Defender.

    • Type Windows defender settings in the search bar and press enter

    • Under Exclusions click on Add Exclusion
    Hope this information helps. Reply to the post with an updated status of the issue so that we can assist you further.
    Arul_D, May 29, 2018
  3. Rafael Com Win User
    Windows Defender problem

    Hi Ernst,

    To troubleshoot this issue, we suggest that you check the Windows Defender service if it's running. If you are using a third party spyware/malware program, it may disable the Windows Defender service. To do this, please follow the steps below:

    • Press Windows + R key.
    • Type services.msc.
    • Right-click Windows Defender service and click

    Let us know the result.
    Rafael Com, May 29, 2018

Windows Defender multiple issues

  1. Windows Defender multiple issues - Similar Threads - Defender multiple issues

  2. Multiple issues experienced on Windows 10

    in Windows 10 BSOD Crashes and Debugging
    Multiple issues experienced on Windows 10: Split from this thread. @Jason_E (MSFT) How about a couple of more? - Wifi doesnt connect fast on Windows start, stays disconnected often for about 1-2 minute until finally connects, connection speed after entering login screen is totally random, can be 2 seconds, 10...
  3. Defender Issue

    in AntiVirus, Firewalls and System Security
    Defender Issue: Defender just started warning me that there is a threat, BrowserModifier:Win32/Polted. However, almost immediately after I go into Defender and "Remove all" of the multiple instances of the same BrowserModifier:Win32/Polted problem I am hit again and again with the same...
  4. Windows Defender issue.

    in AntiVirus, Firewalls and System Security
    Windows Defender issue.: Hello i am having a Windows Defender issue, im am prompted by a "local group policy" denying it. ive dug down into my programs folder, attempted to open MSASCui.exe as an administrater to no avail. im currently in my regedit under hotkey-local-machine and completely lost....
  5. Multiple BSOD Issues

    in Windows 10 BSOD Crashes and Debugging
    Multiple BSOD Issues: Hey, I have had multiple BSOD issues for a while now and would love to fix some/most of them if possible. They range from happening at startup or idle, to in the middle of games and especially while using browsers on sites with lots of stuff going on. I know some of my...
  6. Multiple Monitor issue with KVM

    in Windows 10 Graphic Cards
    Multiple Monitor issue with KVM: My config: I have a personal laptop and a work laptop. I use the built in LCD screens on the laptops as the main screen for each. I also have an external monitor that I share between the two laptops with a KVM switch. So, whichever computer is selected by the KVM has...
  7. Multiple issues

    in Windows 10 Support
    Multiple issues: ok, here's the deal.......... all of a sudden, all programs/windows inherit the "stay on top" option. if i have 2 programs open, click the taskbar icon to switch to the other one, nothing happens; i can only see it if i minimize the current one. if i have 2 programs...
  8. Multiple Startup Issues

    in Windows 10 Support
    Multiple Startup Issues: Hello everyone, So this is my first post on TenForums. Basically, I built a PC a few months ago and installed the Windows 10 student edition on it. After a short time, some strange happenings have occurred. The most important issue is the random start up. From a...
  9. Multiple Issues

    in Windows 10 Support
    Multiple Issues: Hello, after upgrading to windows 10 I have suffered from random blue screens differing in error code each time, my sound just randomly ceasing to work, and my microphone ceasing to work randomly. This did not happen before windows 10. I upgraded from windows 8.1 which I had...
  10. Multiple Window 10 issues

    in Windows 10 Support
    Multiple Window 10 issues: Since I updated to Windows 10 when I start my laptop my desktop background and icons take a very long time to appear . I also noticed my windows button doesnt work and my start menu doesnt work . Alot of people are simnular issues to me but it seems like I am the only...