Windows Security (Defender) died


man00

Well-known member
Member
Local time
11:13 AM
Posts
332
OS
windows 11
Dunno what happen but after trying all the options to turn back on with no luck.
Tried changing values in the registry (failed)
Tried repair install..failed
Used a backup from June and all is fine now
I did disable secure boot in bios so I could install Linux., don't know if that had anything to do with it or not.
I enabled secure boot and restored the backup
Defender still working so far...
Like I said all options within Windows were greyed out to enable again..
Ran online scanners and such nothing showed up
 

My Computer My Computer

At a glance

windows 11Intel i5-10600kf32gb corsair vengerance proAMD RX 6500XT
OS
windows 11
Computer type
PC/Desktop
Manufacturer/Model
Antec/Case
CPU
Intel i5-10600kf
Motherboard
GIGABYTE Z590 UD AC
Memory
32gb corsair vengerance pro
Graphics Card(s)
AMD RX 6500XT
Sound Card
onboard
Monitor(s) Displays
40" Hisense
Hard Drives
Samsung 850
Samsung 870
Seagate 2TB
PSU
EVGA GQ 750
Can’t make heads nor tails of your post. isn't working, is working, greyed out, which one is it?
Also, you’re messing with BIOS/Registry Settings/Linux who knows what you’ve done?

What is “Windows 11”? You’ve been here long enough to know we need to know which Windows you’re running

Try re-enable via powershell

Get-AppXPackage -AllUsers |Where-Object {$_.InstallLocation -like "*SecHealthUI*"} | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

  • Does it mention anywhere on you PC that anything is being “run by your organisation”?
  • Are you installing anything that is also installing a free trial of some kind of antivirus like McCafee or something?
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2 Build 26200.8894Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz32.0 GB of I forget and the box is in storage.Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    OS
    Windows 11 Pro 25H2 Build 26200.8894
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built 2013
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    ROG SupremeFX Formula 8-Channel High Definition Audio
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Touch Screen Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list. OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / Mx Air Cordless
    Internet Speed
    2000/500Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
    TP-Link BE9300 WiFi 7 Bluetooth 5.4 (Archer TBE550E)
    TP-Link TX201 V1 2.5GB Lan

    Grandstream HT812 - VoIP
    ASUS DSL-AX82U - Mesh
    ASUS RT-AC68U - Mesh
    ASUS RT-BE88U Router

    Brother MFC-L2880DW Printer

    I’m on a horse.
  • At a glance

    Windows 11 Pro 25H2 Build 26200.8894 (Wifes)13th Generation Intel® Core™ i5-1340P Process...16GB LPDDR5-52001x Intel® Iris® Xe Graphics
    Operating System
    Windows 11 Pro 25H2 Build 26200.8894 (Wifes)
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7 14IRL8 - Type 82YL
    CPU
    13th Generation Intel® Core™ i5-1340P Processor(Core™ i5-1340P)
    Memory
    16GB LPDDR5-5200
    Graphics card(s)
    1x Intel® Iris® Xe Graphics
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512 GB SSD PCIe
    Mouse
    Logiteck MX Master 3S
    Internet Speed
    2000/500
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.


    Wireless Network: Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above
    Ports: 1x 1 Novo button; 2 in 1 Audio Combo jack; Micro SD Card Reader; HDMI 1.4b; 2 x USB Type-C (TBT4)
    USB 3.2 Gen 2 DP 1.4a
    PD 3.0); 1 x USB 3.2 Gen1 Type A
    Camera
    1x 1080P FHD IR/RGB Hybrid with Privacy Shutter and Dual Array Microphone
    Graphics
    1x Intel® Iris® Xe Graphics
    Monitor
    14" WUXGA
    Form Factor
    Convertible Notebook
  • Windows 11 Pro 25H2 Build 26200.8894 (Wifes)

    Yoga 7 2-in-1 14IML9 - Type 83DJ

    Processor: Intel® Core™ Ultra 7 155H Processor(Core™ Ultra 7 155H)

    Memory: 32GB LPD5X-7467

    Hard Drive: 1 TB SSD PCIe

    Wireless Network: 1x Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above

    Ports: 1 x HDMI 2.1 TMDS; 1 x Novo Button; 1 x Combo Audio Jack
    2 x USB-C (USB 4.0)
    1 x USB-A 3.2 Gen 1

    Camera: 1080P FHD IR Hybrid with Dual Microphone

    Graphics: Intel® Arc™ Graphics

    Monitor: 14" 2.8K

    ...Where's my horse?
Once again proof that a system image can save the day. Glad you fixed it and more glad you believe in making system images. We preach it here all the time but so many folks never listen to our sermons. Good for you.
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2 26200.8875i9-10900 10 core 20 threads32 gbnone-Intel UHD Graphics 630
    OS
    Windows 11 Pro 25H2 26200.8875
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    2x1tb Solidigm m.2 nvme /External drives 512gb Samsung m.2 sata+2tb Kingston m2.nvme
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    #1 Edge #2 Firefox
    Antivirus
    Defender+MWB Premium
  • At a glance

    Windows 11 Pro 24H2 26200.8875AMD Ryzen 7 6800U32 gbintegrated
    Operating System
    Windows 11 Pro 24H2 26200.8875
    Computer type
    PC/Desktop
    Manufacturer/Model
    Beelink Mini PC SER5
    CPU
    AMD Ryzen 7 6800U
    Memory
    32 gb
    Graphics card(s)
    integrated
    Sound Card
    integrated
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Crucial nvme
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    still too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender
    Other Info
    System 3 is non compliant Dell 9020 i7-4770/24gb ram Win11 PRO 26200.8875
Once again proof that a system image can save the day. Glad you fixed it and more glad you believe in making system images. We preach it here all the time but so many folks never listen to our sermons. Good for you.

What do you recommend for making system images? Thanks!
 

My Computer My Computer

At a glance

Windows 11
OS
Windows 11
O.S build 22631.3880
I think it was disabling Secure Boot so I could install Pop! OS that may have started the issues.
I installed other Linux flavors without having to disable Secure Boot ..who knows for sure but working now
thanks to Macrium. Because nothing else I found would work
 

My Computer My Computer

At a glance

windows 11Intel i5-10600kf32gb corsair vengerance proAMD RX 6500XT
OS
windows 11
Computer type
PC/Desktop
Manufacturer/Model
Antec/Case
CPU
Intel i5-10600kf
Motherboard
GIGABYTE Z590 UD AC
Memory
32gb corsair vengerance pro
Graphics Card(s)
AMD RX 6500XT
Sound Card
onboard
Monitor(s) Displays
40" Hisense
Hard Drives
Samsung 850
Samsung 870
Seagate 2TB
PSU
EVGA GQ 750
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