How do I manually update Windows Defender in Windows 11?

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Solved Can't update Windows Defender - Windows 11

Thread starter WiktorWdowiak
Start date Aug 27, 2021

Local time11:56 PMPosts46Location SanokOS Windows 11 Home Dev Insider Preview x64

Hello!
After update 22000.132, I can't update Windows Defender.
I thought that it's an bug, and next update (22000.160) will fix it, but it didn't

This is what is displaying when I try to update Windows Defender:

Do you guys know what can I do, to make Windows Defender finally update?

NOTE: I can't really do a clean install

Windows Build/Version 21H2 (OS Build: 22000.160)

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time3:26 AMPosts126OS Windows 11

My Computer

OS Windows 11 Computer type PC/Desktop Manufacturer/Model Assembled CPU Intel i7-7700k Motherboard Asrock Z270 Taichi Memory 16 GB Graphics Card(s) Intel 630 onboard Sound Card Onboard Monitor(s) Displays Benq 1080p Screen Resolution 1920*1080 Hard Drives NVMe Case Cooler Master Keyboard Some Chinese basic wired Mouse Logitech Wireless Internet Speed 50 Mbps Browser Chrome, Edge Antivirus Norton 360

Local time12:56 AMPosts1,034Location AdanaOS Windows 11

Use Windows Update Troubleshooter.

Right-click on Start button and pick Settings
Go to System > Troubleshoot > Other troubleshooters
Click on Windows Update and select Run

Download Windows updates manually.

Go to the official Microsoft update catalog;
Enter a specific update code, for example, KB4481031
Select the correct version and click Download
Click on the link and Windows will update your computer

Resetting the Windows Update components can usually solve these types of issues.

My Computer

OS Windows 11 Computer type PC/Desktop Manufacturer/Model HP Pavilion CPU AMD Ryzen 7 5700G Motherboard Erica6 Memory Micron Technology DDR4-3200 16GB Graphics Card(s) NVIDIA GeForce RTX 3060 Sound Card Realtek ALC671 Monitor(s) Displays Samsung SyncMaster U28E590 Screen Resolution 3840 x 2160 Hard Drives SAMSUNG MZVLQ1T0HALB-000H1

Local time10:56 PMPosts1,921OS Win 11 Pro & Dev.

You could also try to reset Win Security. All Apps- right click Windows Security, more, app settings- reset or try repair.

My Computers

OS Win 11 Pro & Dev. Computer type Laptop Manufacturer/Model ASUS VivoBook CPU AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx Motherboard ASUSTeK COMPUTER INC. X509DA (FP5) Memory 12GB Graphics Card(s) RX Vega 10 Graphics Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080@60Hz Hard Drives INTEL SSD 660p 512GB NVMe Internet Speed 25 Mbps Browser Edge Antivirus Defender
Operating System Windows 11 Computer type Laptop Manufacturer/Model ACER CPU AMD Ryzen 7 5800H / 3.2 GHz Motherboard CZ Scala_CAS (FP6) Memory 16 GB (2 x 8 GB) DDR4 SDRAM 3200 MHz Graphics card(s) NVIDIA GeForce RTX 3060 6 GB GDDR6 SDRAM Sound Card Realtek Audio. NVIDIA High Definition Audio Monitor(s) Displays 15.6" LED backlight 1920 x 1080 (Full HD) 144 Hz Screen Resolution 1920 x 1080 (Full HD) Hard Drives 1.024 TB SSD M.2 2280 - Samsung PSU 180 Watt, 19.5 V Mouse Logitech Internet Speed 25 Mbps Browser Edge Antivirus Defender

Local time11:56 PMPosts46Location SanokOS Windows 11 Home Dev Insider Preview x64

I tried

Trigger a definition update for Windows Defender Antivirus using command prompt

And this is what displayed, when I used those commands in cmd (With Admin Privilages):
"%ProgramFiles%\Windows Defender\MpCmdRun.exe" -removedefinitions -dynamicsignatures:
Service Version: 0.0.0.0
Engine Version: 0.0.0.0

No engine/signature is currently loaded.

"%ProgramFiles%\Windows Defender\MpCmdRun.exe" -SignatureUpdate:
Signature update started . . .
Service Version: 0.0.0.0
Engine Version: 0.0.0.0
ERROR: Signature Update failed with hr=0x800106ba
CmdTool: Failed with hr = 0x800106ba. Check C:\Users\gamin\AppData\Local\Temp\MpCmdRun.log for more information

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time11:56 PMPosts46Location SanokOS Windows 11 Home Dev Insider Preview x64

Use Windows Update Troubleshooter.
Right-click on Start button and pick Settings
Go to System > Troubleshoot > Other troubleshooters
Click on Windows Update and select Run
Download Windows updates manually.
Go to the official Microsoft update catalog;
Enter a specific update code, for example, KB4481031
Select the correct version and click Download
Click on the link and Windows will update your computer
Resetting the Windows Update components can usually solve these types of issues.

I tried that, but it's not a Windows Update problem.
Other updates install normally

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time11:56 PMPosts46Location SanokOS Windows 11 Home Dev Insider Preview x64

Use Windows Update Troubleshooter.
Right-click on Start button and pick Settings
Go to System > Troubleshoot > Other troubleshooters
Click on Windows Update and select Run
Download Windows updates manually.
Go to the official Microsoft update catalog;
Enter a specific update code, for example, KB4481031
Select the correct version and click Download
Click on the link and Windows will update your computer
Resetting the Windows Update components can usually solve these types of issues.

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time10:56 PMPosts1,921 OS Win 11 Pro & Dev.

I made that, but when I tried to update again, I still have errors:
View attachment 6428

So it's proved it's a win update error. As @FreeBooter suggested last in his post to reset WU will work.

My Computers

OS Win 11 Pro & Dev. Computer type Laptop Manufacturer/Model ASUS VivoBook CPU AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx Motherboard ASUSTeK COMPUTER INC. X509DA (FP5) Memory 12GB Graphics Card(s) RX Vega 10 Graphics Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080@60Hz Hard Drives INTEL SSD 660p 512GB NVMe Internet Speed 25 Mbps Browser Edge Antivirus Defender
Operating System Windows 11 Computer type Laptop Manufacturer/Model ACER CPU AMD Ryzen 7 5800H / 3.2 GHz Motherboard CZ Scala_CAS (FP6) Memory 16 GB (2 x 8 GB) DDR4 SDRAM 3200 MHz Graphics card(s) NVIDIA GeForce RTX 3060 6 GB GDDR6 SDRAM Sound Card Realtek Audio. NVIDIA High Definition Audio Monitor(s) Displays 15.6" LED backlight 1920 x 1080 (Full HD) 144 Hz Screen Resolution 1920 x 1080 (Full HD) Hard Drives 1.024 TB SSD M.2 2280 - Samsung PSU 180 Watt, 19.5 V Mouse Logitech Internet Speed 25 Mbps Browser Edge Antivirus Defender

Local time11:56 PMPosts46Location SanokOS Windows 11 Home Dev Insider Preview x64

So it's proved it's a win update error. As @FreeBooter suggested last in his post to reset WU will work.

I did reset Windows Security, but it didn't worked.
I did run Windows Update Troubleshooter, but it also didn't work
I even tried to download update manually, but it also didn't work

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time10:56 PMPosts1,921OS Win 11 Pro & Dev.

I did reset Windows Security, but it didn't worked.
I did run Windows Update Troubleshooter, but it also didn't work
I even tried to download update manually, but it also didn't work

See post #3

My Computers

OS Win 11 Pro & Dev. Computer type Laptop Manufacturer/Model ASUS VivoBook CPU AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx Motherboard ASUSTeK COMPUTER INC. X509DA (FP5) Memory 12GB Graphics Card(s) RX Vega 10 Graphics Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080@60Hz Hard Drives INTEL SSD 660p 512GB NVMe Internet Speed 25 Mbps Browser Edge Antivirus Defender
Operating System Windows 11 Computer type Laptop Manufacturer/Model ACER CPU AMD Ryzen 7 5800H / 3.2 GHz Motherboard CZ Scala_CAS (FP6) Memory 16 GB (2 x 8 GB) DDR4 SDRAM 3200 MHz Graphics card(s) NVIDIA GeForce RTX 3060 6 GB GDDR6 SDRAM Sound Card Realtek Audio. NVIDIA High Definition Audio Monitor(s) Displays 15.6" LED backlight 1920 x 1080 (Full HD) 144 Hz Screen Resolution 1920 x 1080 (Full HD) Hard Drives 1.024 TB SSD M.2 2280 - Samsung PSU 180 Watt, 19.5 V Mouse Logitech Internet Speed 25 Mbps Browser Edge Antivirus Defender

Local time11:56 PM Posts46Location SanokOS Windows 11 Home Dev Insider Preview x64

I did reset/reregister right now, then restarted my computer, and I still have 0x80070643 errors:

I did also check Windows Security app, and I only have these options:

I got this feeling that something is missing here, but I don't really remember

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time10:56 PMPosts1,921OS Win 11 Pro & Dev.

Try manually updating from within Windows Security. Virus and threat protection and scroll down to Virus and threat protection updates and click the link for Protection updates.

My Computers

OS Win 11 Pro & Dev. Computer type Laptop Manufacturer/Model ASUS VivoBook CPU AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx Motherboard ASUSTeK COMPUTER INC. X509DA (FP5) Memory 12GB Graphics Card(s) RX Vega 10 Graphics Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080@60Hz Hard Drives INTEL SSD 660p 512GB NVMe Internet Speed 25 Mbps Browser Edge Antivirus Defender
Operating System Windows 11 Computer type Laptop Manufacturer/Model ACER CPU AMD Ryzen 7 5800H / 3.2 GHz Motherboard CZ Scala_CAS (FP6) Memory 16 GB (2 x 8 GB) DDR4 SDRAM 3200 MHz Graphics card(s) NVIDIA GeForce RTX 3060 6 GB GDDR6 SDRAM Sound Card Realtek Audio. NVIDIA High Definition Audio Monitor(s) Displays 15.6" LED backlight 1920 x 1080 (Full HD) 144 Hz Screen Resolution 1920 x 1080 (Full HD) Hard Drives 1.024 TB SSD M.2 2280 - Samsung PSU 180 Watt, 19.5 V Mouse Logitech Internet Speed 25 Mbps Browser Edge Antivirus Defender

Local time11:56 PM Posts46Location SanokOS Windows 11 Home Dev Insider Preview x64

Try manually updating from within Windows Security. Virus and threat protection and scroll down to Virus and threat protection updates and click the link for Protection updates.

The problem is, I don't have tab Virus and threat protection in Windows Security:

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time10:56 PMPosts1,921OS Win 11 Pro & Dev.

Missed it first time
As you have the Home version try the registry fix in @Brink 's tutorial here.

My Computers

OS Win 11 Pro & Dev. Computer type Laptop Manufacturer/Model ASUS VivoBook CPU AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx Motherboard ASUSTeK COMPUTER INC. X509DA (FP5) Memory 12GB Graphics Card(s) RX Vega 10 Graphics Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080@60Hz Hard Drives INTEL SSD 660p 512GB NVMe Internet Speed 25 Mbps Browser Edge Antivirus Defender
Operating System Windows 11 Computer type Laptop Manufacturer/Model ACER CPU AMD Ryzen 7 5800H / 3.2 GHz Motherboard CZ Scala_CAS (FP6) Memory 16 GB (2 x 8 GB) DDR4 SDRAM 3200 MHz Graphics card(s) NVIDIA GeForce RTX 3060 6 GB GDDR6 SDRAM Sound Card Realtek Audio. NVIDIA High Definition Audio Monitor(s) Displays 15.6" LED backlight 1920 x 1080 (Full HD) 144 Hz Screen Resolution 1920 x 1080 (Full HD) Hard Drives 1.024 TB SSD M.2 2280 - Samsung PSU 180 Watt, 19.5 V Mouse Logitech Internet Speed 25 Mbps Browser Edge Antivirus Defender

Local time12:56 AMPosts1,034Location AdanaOS Windows 11

My Computer

OS Windows 11 Computer type PC/Desktop Manufacturer/Model HP Pavilion CPU AMD Ryzen 7 5700G Motherboard Erica6 Memory Micron Technology DDR4-3200 16GB Graphics Card(s) NVIDIA GeForce RTX 3060 Sound Card Realtek ALC671 Monitor(s) Displays Samsung SyncMaster U28E590 Screen Resolution 3840 x 2160 Hard Drives SAMSUNG MZVLQ1T0HALB-000H1

Local time11:56 PMPosts46Location SanokOS Windows 11 Home Dev Insider Preview x64

Missed it first time
As you have the Home version try the registry fix in @Brink 's tutorial here.

Okay, I'll try that

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time11:56 PMPosts46Location SanokOS Windows 11 Home Dev Insider Preview x64

Can I use UUP Dump for In-place Upgrade?

My Computer

OS Windows 11 Home Dev Insider Preview x64 Computer type Laptop Manufacturer/Model HP Pavilion 16-a0030nw CPU Intel(R) Core(TM) i5-10300H Motherboard HP 87AE (U3E1) Memory 8GB Graphics Card(s) 4095MB NVIDIA GeForce GTX 1650 Ti (HP), Intel UHD Graphics (HP) (SLI Disabled) Sound Card Realtek High Definition Audio Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080 Hard Drives 476GB INTEL SSDPEKNW512G8H (Unknown (SSD)) PSU DEFAULT Case LAPTOP Cooling DEFAULT Keyboard DEFAULT Mouse Defender Force, Touchpad Internet Speed ~10MB/s Browser Google Chrome Antivirus Windows Defender

Local time12:56 AMPosts1,034Location AdanaOS Windows 11

Can I use UUP Dump for In-place Upgrade?

Yes you can do that.

My Computer

OS Windows 11 Computer type PC/Desktop Manufacturer/Model HP Pavilion CPU AMD Ryzen 7 5700G Motherboard Erica6 Memory Micron Technology DDR4-3200 16GB Graphics Card(s) NVIDIA GeForce RTX 3060 Sound Card Realtek ALC671 Monitor(s) Displays Samsung SyncMaster U28E590 Screen Resolution 3840 x 2160 Hard Drives SAMSUNG MZVLQ1T0HALB-000H1

Local time10:56 PMPosts1,921OS Win 11 Pro & Dev.

Can I use UUP Dump for In-place Upgrade?

I'm assuming the reg fix didn't work?
Hopefully the in-place upgrade will work for you. It didn't with my issue with Defender but that's another story.

My Computers

OS Win 11 Pro & Dev. Computer type Laptop Manufacturer/Model ASUS VivoBook CPU AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx Motherboard ASUSTeK COMPUTER INC. X509DA (FP5) Memory 12GB Graphics Card(s) RX Vega 10 Graphics Monitor(s) Displays Generic PnP Monitor (1920x1080@60Hz) Screen Resolution 1920x1080@60Hz Hard Drives INTEL SSD 660p 512GB NVMe Internet Speed 25 Mbps Browser Edge Antivirus Defender
Operating System Windows 11 Computer type Laptop Manufacturer/Model ACER CPU AMD Ryzen 7 5800H / 3.2 GHz Motherboard CZ Scala_CAS (FP6) Memory 16 GB (2 x 8 GB) DDR4 SDRAM 3200 MHz Graphics card(s) NVIDIA GeForce RTX 3060 6 GB GDDR6 SDRAM Sound Card Realtek Audio. NVIDIA High Definition Audio Monitor(s) Displays 15.6" LED backlight 1920 x 1080 (Full HD) 144 Hz Screen Resolution 1920 x 1080 (Full HD) Hard Drives 1.024 TB SSD M.2 2280 - Samsung PSU 180 Watt, 19.5 V Mouse Logitech Internet Speed 25 Mbps Browser Edge Antivirus Defender

Similar threads

Forums
Windows Support Forums
AntiVirus, Firewalls and System Security

How do I update Windows Defender on Windows 11?

Windows Defender Download for Windows 10/11 For Windows 11, you can click Start -> Settings -> Windows Update -> Check for updates. If playback doesn't begin shortly, try restarting your device.

How do I manually update Windows Defender?

Launch Windows Security through the Start menu and select Virus & threat protection. Under Virus & threat protection updates, click on Protection updates. Select Check for updates, and Windows Security will attempt to download the latest updates from Microsoft.

Can't update Windows Defender on Windows 11?

Run the Windows Update Troubleshooter This tool is capable of auto-applying repair strategies that you would normally need to deploy manually. If your operating system's inability to update Windows Defender is related to the WU component, this operation should help you fix the root of this issue.