Defender GUI Fails to Load


Steve C

Steve C

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The Defender GUI on my desktop PC often fails to load on first opening and shows a blank window. It eventually appears after several attempts or logging off/on. I've reset the Windows Security app. Is this a known bug and is there a fix?
 

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You may reset from Settings > System > System Components > Windows Security > click 3 dot menu > select Advanced > select Reset > Confirm > Restart PC, or ...

Run this as administrator.
Code: 
Get-AppxPackage *Microsoft.Windows.SecHealthUI* | Reset-AppxPackage
 

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Windows 11 Pro 25H2 26200.7840Intel Core i3-8145U16GB
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Windows 11 Pro 25H2 26200.7840
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BruceR said:
He said he'd done that.
Click to expand...
Duh! Brain lock. :boom::cool:

@Steve C - have you run the usual DISM and SFC scans? The other option is a repair install via System > Recovery, which is fairly painless.
 

My Computer My Computer

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Windows 11 Pro 25H2 26200.7840Intel Core i3-8145U16GB
OS
Windows 11 Pro 25H2 26200.7840
Computer type
Laptop
Manufacturer/Model
Lenovo IdeaPad L340
CPU
Intel Core i3-8145U
Memory
16GB
Hard Drives
500 GB M2 1 TB HDD
Internet Speed
400 MB
Browser
Chrome | Edge
Antivirus
Microsoft Defender | Block unknown executables | Various ASR rules enabled | Smart App Control
oldschool said:
Duh! Brain lock. :boom::cool:

@Steve C - have you run the usual DISM and SFC scans? The other option is a repair install via System > Recovery, which is fairly painless.
Click to expand...
Yes done that. It's only an irritation so not worth a repair install since the Defender window does open. I suspect a bug causing the GUI not to interact properly with the NVidia driver.
 

My Computer My Computer

At a glance

Windows 11 ProCore i7-13700K64 GB Kingston Fury Beast DDR5Gigabyte GeForce RTX 2060 Super Gaming OC 8G
OS
Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Self build
CPU
Core i7-13700K
Motherboard
Asus TUF Gaming Plus WiFi Z790
Memory
64 GB Kingston Fury Beast DDR5
Graphics Card(s)
Gigabyte GeForce RTX 2060 Super Gaming OC 8G
Sound Card
Realtek S1200A
Monitor(s) Displays
Viewsonic VP2770 & Dell (secondary)
Screen Resolution
2560 x 1440
Hard Drives
Kingston KC3000 2TB NVME SSD & SATA HDDs & SSD
PSU
EVGA SuperNova G2 850W
Case
Nanoxia Deep Silence 1
Cooling
Noctua NH-D14
Keyboard
Microsoft Digital Media Pro
Mouse
Logitech Wireless
Internet Speed
80 Mb / s
Browser
Chrome
Antivirus
Defender, Malwarebytes Free & AdwCleaner
Hi:
How about reset the defender app and the definition to default version, and then update via windows update.

learn.microsoft.com

Use the command line to manage Microsoft Defender Antivirus - Microsoft Defender for Endpoint

Run Microsoft Defender Antivirus scans and configure next-generation protection with a dedicated command-line utility.
learn.microsoft.com
Code: 
cd %ProgramFiles%\Windows Defender
MpCmdRun.exe -removedefinitions -all
MpCmdRun.exe -ResetPlatform
Click to expand...
 

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Windows 11 26200.7922
OS
Windows 11 26200.7922
Computer type
PC/Desktop
fierycloud said:
Hi:
How about reset the defender app and the definition to default version, and then update via windows update.
Click to expand...
Maybe but I suspect it's perhaps an issue integrating with the NVidia GPU driver. I've now sent a feedback report which no doubt Microsoft will ignore.
 

My Computer My Computer

At a glance

Windows 11 ProCore i7-13700K64 GB Kingston Fury Beast DDR5Gigabyte GeForce RTX 2060 Super Gaming OC 8G
OS
Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Self build
CPU
Core i7-13700K
Motherboard
Asus TUF Gaming Plus WiFi Z790
Memory
64 GB Kingston Fury Beast DDR5
Graphics Card(s)
Gigabyte GeForce RTX 2060 Super Gaming OC 8G
Sound Card
Realtek S1200A
Monitor(s) Displays
Viewsonic VP2770 & Dell (secondary)
Screen Resolution
2560 x 1440
Hard Drives
Kingston KC3000 2TB NVME SSD & SATA HDDs & SSD
PSU
EVGA SuperNova G2 850W
Case
Nanoxia Deep Silence 1
Cooling
Noctua NH-D14
Keyboard
Microsoft Digital Media Pro
Mouse
Logitech Wireless
Internet Speed
80 Mb / s
Browser
Chrome
Antivirus
Defender, Malwarebytes Free & AdwCleaner
Steve C said:
A interface gráfica do Windows Defender no meu computador desktop frequentemente não carrega na primeira vez que é aberta e exibe uma janela em branco. Ela acaba aparecendo depois de várias tentativas ou após fazer logoff e login novamente. Já redefini o aplicativo Segurança do Windows. Isso é um bug conhecido? Existe alguma solução?
Click to expand...
Tenho um problema semelhante ao usar uma conta de administrador integrada ou ao desativar completamente o UAC. Descobri que está relacionado ao driver Intel Management MEI; se eu estiver desativado, tudo funciona, mas quando o ativo, a interface permanece branca por alguns segundos antes de abrir, o que é irritante.

Algo mudou entre 23h02 e 23h02; esses conflitos ocorrem apenas no dia 24 ou posterior, testado em 2 PCs.
 

My Computer My Computer

At a glance

Windows 11 25h2Intel I7 10700K64GB ADATA XPG GAMMINGNVIDIA RTX 3060 12GB
OS
Windows 11 25h2
Computer type
PC/Desktop
Manufacturer/Model
ASUS
CPU
Intel I7 10700K
Motherboard
ASUS Z590-E GAMMING WIFI
Memory
64GB ADATA XPG GAMMING
Graphics Card(s)
NVIDIA RTX 3060 12GB
Monitor(s) Displays
LG 34, DELL 24
Screen Resolution
2K
Hard Drives
SAMSUNG NVME 970 500 GB
XRAYDISK 500GB
WESTERN DIGITAL 3TB
Keyboard
FALLEN ACE
Mouse
LOGITE G502
Internet Speed
500 MBPS
Antivirus
WINDOWS DEFENDER
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