Windows Update error (Install error - 0x80070643)


coolingwater

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Hello everyone,

I would appreciate if you could help me with an issue ive been facing this week. I have been trying to update (Security Intelligence Update for Microsoft Defender Antivirus KB2267602 (Version 1.401.551.0) - Current Channel (Broad) but I keep getting this error "Install error - 0x80070643" (pic attached). I tried to update because i noticed my Windows Security Threat and Virus and threat protection wouldn't turn on. I am not sure if this issue is related but everytime i tried to restart the threat protection, it keeps failing.

I am running windows security along side malwarebytes but have not run in to this issue before. Periodically i would only see a message saying "Page not available, your IT administrator has limited access to some area of this app...", although my windows 11 account is personal and not connected to any university/office account. I have doubled check this prior. Just a side not to this is that i get this message when trying to turn on real-rime protection via Microsoft Defender. I apologies if this isn't related.

Also other error when trying to restart yields a "unexpected error, we ran into a problem..." message.

Some of the fixes i've tried were:
Running dism and sfc scannow and deleting some files in C:\Windows\SoftwareDistribution and restarting the update, just to name a few.

I've run malwarebytes but it did not find any virus/malware, I am not sure what the issue could be. I hope its not a virus/malware but either way I would appreciate any help you may provide.

Thank you for your time.
 

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Windows 11
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That error message means: Fatal error during installation.

Try my suggestions at my video.

Here are a few techniques to reset the Windows Update components to fix stuck updates trying to download and install on Windows.

 

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Windows 11AMD Ryzen 7 5700GMicron Technology DDR4-3200 16GBNVIDIA GeForce RTX 3060
OS
Windows 11
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HP Pavilion
CPU
AMD Ryzen 7 5700G
Motherboard
Erica6
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NVIDIA GeForce RTX 3060
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Realtek ALC671
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Hi @FreeBooter, thank you for the response, i appreciate your help.

I have tried the solutions on your video, it still fails at installing with the same error code.

I also can't seem to find KB2267602 (Version 1.401.587.0) on the windows update catalog.

Cheers.
 

My Computer My Computer

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Windows 11
OS
Windows 11
Computer type
PC/Desktop
Manufacturer/Model
Custom
Tell you the true, last time i deal with Windows defender not updating, i had to perform in-place upgrade to resolve it.
 

My Computer My Computer

At a glance

Windows 11AMD Ryzen 7 5700GMicron Technology DDR4-3200 16GBNVIDIA GeForce RTX 3060
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
I am not so computer savvy, but does that mean that I would have to reinstall windows 11?
 

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Windows 11
OS
Windows 11
Computer type
PC/Desktop
Manufacturer/Model
Custom
In this video, i will show you how to repair install of Windows 11 by performing an in-place upgrade without losing anything.

 

My Computer My Computer

At a glance

Windows 11AMD Ryzen 7 5700GMicron Technology DDR4-3200 16GBNVIDIA GeForce RTX 3060
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
0x80070643
That's a frequent issue on Windows 10, for Defender updates, but I have yet to see this on 11.

But in my case, when I was on 10, it would happen, then when it updates again, no error.

For the other errors, it's possible that it's caused by malware.

I would be suspicious about the "page not available" error. Same for "unexpected error" error message.
 

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    Ryzen 9 5900X
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    32 GB (2x16 GB G.Skill TridentZ Neo)
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Hello everyone,

I would appreciate if you could help me with an issue ive been facing this week. I have been trying to update (Security Intelligence Update for Microsoft Defender Antivirus KB2267602 (Version 1.401.551.0) - Current Channel (Broad) but I keep getting this error "Install error - 0x80070643" (pic attached). I tried to update because i noticed my Windows Security Threat and Virus and threat protection wouldn't turn on. I am not sure if this issue is related but everytime i tried to restart the threat protection, it keeps failing.

I am running windows security along side malwarebytes but have not run in to this issue before. Periodically i would only see a message saying "Page not available, your IT administrator has limited access to some area of this app...", although my windows 11 account is personal and not connected to any university/office account. I have doubled check this prior. Just a side not to this is that i get this message when trying to turn on real-rime protection via Microsoft Defender. I apologies if this isn't related.

Also other error when trying to restart yields a "unexpected error, we ran into a problem..." message.

Some of the fixes i've tried were:
Running dism and sfc scannow and deleting some files in C:\Windows\SoftwareDistribution and restarting the update, just to name a few.

I've run malwarebytes but it did not find any virus/malware, I am not sure what the issue could be. I hope its not a virus/malware but either way I would appreciate any help you may provide.

Thank you for your time.
could you resolve the error

0x80070643?​

 

My Computer My Computer

At a glance

Windows 11 Home
OS
Windows 11 Home
Computer type
Laptop
could you resolve the error

0x80070643?​

I don't know, except that the error code (I only got that one on 10, so far) seems to mean that the installation was cancelled because another update installation is in progress, such as a CU, for example.
 

My Computers My Computers

  • At a glance

    Windows 11 Pro x64 25H2Ryzen 9 5900X64 GB G.Skill RipJaws V F4-3200C16D-64GVKASRock Steel Legend Arc B580 12 GB
    OS
    Windows 11 Pro x64 25H2
    Computer type
    PC/Desktop
    CPU
    Ryzen 9 5900X
    Motherboard
    ASRock B550 PG Velocita (UEFI-BIOS 3.90)
    Memory
    64 GB G.Skill RipJaws V F4-3200C16D-64GVK
    Graphics Card(s)
    ASRock Steel Legend Arc B580 12 GB
    Monitor(s) Displays
    Alienware AW3423DWF OLED ultrawide
    Hard Drives
    Samsung 990 Pro 1 TB NVMe SSD
    PSU
    eVGA Supernova 750 G3
    Case
    Corsair 275R
    Internet Speed
    VTel FTTH 1 Gb down and 1 Gb up
  • At a glance

    Windows 11 Home x64 25H2Ryzen 7 5800X3D32 GB (2x16 GB G.Skill TridentZ Neo)Sapphire Nitro+ Radeon RX 6750 XT
    Operating System
    Windows 11 Home x64 25H2
    Computer type
    PC/Desktop
    CPU
    Ryzen 7 5800X3D
    Motherboard
    Asus ROG Strix B550-F Gaming (UEFI-BIOS version 3644)
    Memory
    32 GB (2x16 GB G.Skill TridentZ Neo)
    Graphics card(s)
    Sapphire Nitro+ Radeon RX 6750 XT
    Hard Drives
    Samsung 970 Pro 512 GB NVMe SSD
    PSU
    Corsair RM850x
    Case
    Fractal Focus G

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