Microsoft Defender Anti-Malware/Platform Update Kit for Windows 10 and 11 (Updated: October 14th, 2025)

[steven4554]

For Integration into offline Windows 11/10 images only, not to be installed on a Running/functioning Windows 11/10 OS!

I will provide updated defender cabs on the 1st, 2nd, 3rd and 4th week of the same month, always on a Tuesday. Updates will be available from this first post only.

Credit goes to members on My Digital Life Forum:-

abbodi1406 for signature blocks in the Windows Defender Integration Tool script. And for providing direct download links for the beta platform updates.

Enthousiast for pointing out the missing files, letting me know about new platform updates and for testing the new defender cabs. 

AveYo for creating a verification tool that checks the digital signatures of files inside the cabs, to make sure they are valid and not tampered with. This script has been updated to support arm64.

drew84, Stripakulina and Enthousiast For providing direct download links for the x64 beta platform updates.

atplsx for providing the direct download links to pre-release platform updates.

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To integrate the updated Platform and Anti-Malware definitions into your Windows 10/11 offline images, you can use the tools below:-

1. Windows NT 10.0 Updates Installer v10.55 - Tool created and maintained by abbodi1406

2. UUP to ISO Converter v117f - Tool created and maintained by abbodi1406

3. Defender files Verification Tool v2.1 - Tool created by AveYo, Updated by AveYo and steven4554

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Details
Released: October 14th, 2025
Next Update: October 21st, 2025
Defender: 5.10.2510.1
Engine: 1.1.25090.3001
Platform: 4.18.25090.3009
Version: 1.439.170.0

x64
File Size: 236.5MB / SHA-1: D574D0309419710672B7D03680E169D2D39131D3

arm64
File Size: 234.8MB / SHA-1: 71E606B4D5880D3FFA99A68C08C6A6DC515A71F3

x86 - (This cab is for Windows 10 x86 only!)
File Size: 228.4MB / SHA-1: DFC32C2C69D2A653991972B9BB75D2793EED2BDB

Defender cabs can be downloaded here: https://mega.nz/folder/S8xknZDK#heADKKYAv9w2HUQV6s8Ntw

Download the previous two versions of supported defender cabs:-

https://mega.nz/folder/C4h3TALT#sD9qhmluImsDV7YGhpBADg

Please Note - Defender cabs (x64, arm64 and x86) will continue to be updated until end of the Windows 10 ESU programme.

Users that are running both Enterprise editions of LTSC 2021, defender cabs will continue to be made for x64 until end of support of both SKU's. As for x86, I will continue making cabs until end of support date of the LTSC Enterprise 2021 version. Which is on January 12th, 2027!

Edited Wednesday at 12:24 AM by steven4554

[steven4554]

Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.439.xxxx.0) - Current Channel (Broad)

x64  -  ARM64  -  x86

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Update for Microsoft Defender Antivirus antimalware platform - KB4052623 (Version 4.18.25090.3009)

Not yet available on MS Catalog website.

x64

https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2025/10/updateplatform.amd64fre_d6dd025fbea82ea59a6b6b4ce3d1e4075c018091.exe

ARM64

https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2025/10/updateplatform.arm64fre_594de7e7ad56a5d4fe418bf4380d53299b187cda.exe

x86

https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2025/10/updateplatform.x86fre_09aeed3164c4491fe37aa3e2101a2e66581a8e73.exe

Update for Windows Security platform antimalware platform - KB5007651 (Version 10.0.29429.1000)
Available on MS Catalog website.

x64

https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2025/08/securityhealthsetup_d50fbd3731e8dcceb40dedececac7aecbbc9f931.exe

ARM64

https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2025/08/securityhealthsetup_ea0d21537657a63fb3a9620e24aad1873e1f7363.exe

Edited October 8 by steven4554

[vehf347]

On 6/22/2022 at 7:02 PM, steven4554 said:

For Integration into offline Windows 11/10 images only, not to be installed on a Running/functioning Windows 11/10 OS!

I will provide updated defender cabs on the 1st, 2nd, 3rd and 4th week of the same month, always on a Friday. Updates will be available from this first post only.

Credit goes to members on My Digital Life Forum:-

abbodi1406 for signature blocks in the Windows Defender Integration Tool script. And for providing direct download links for the beta platform updates.

Enthousiast for pointing out the missing files, letting me know about new platform updates and for testing the new defender cabs. 

AveYo for creating a verification tool that checks the digital signatures of files inside the cabs, to make sure they are valid and not tampered with. This script has been updated to support arm64.

drew84, Stripakulina and Enthousiast For providing direct download links for the x64 beta platform updates.

atplsx for providing the direct download links to pre-release platform updates.

----------------------------------------------------------------

To integrate the updated Platform and Anti-Malware definitions into your Windows 10/11 offline images, you can use the tools below:-

1. Windows NT 10.0 Updates Installer v10.50 - Tool created and maintained by abbodi1406

2. UUP to ISO Converter v111 - Tool created and maintained by abbodi1406

3. Defender files Verification Tool v2.1 - Tool created by AveYo, Updated by AveYo and steven4554

------------------------------------------------------------------

Details
Released: March 7th, 2025
Next Update: March 14th, 2025
Defender: 5.2.2502.6
Engine: 1.1.25010.7
Platform: 4.18.25010.11
Version: 1.423.282.0

x64
File Size: 191.0MB / SHA-1: 876C5FE4804B741313AAEEE45884891EFB5ACE3A

arm64
File Size: 189.5MB / SHA-1: ABD3C5CE93B4A2F6B4A59B41C07AF3AB0712A15E

x86 - (This cab is for Windows 10 x86 only!)
File Size: 186.3MB / SHA-1: 9329004CB9F522999BA25F87187617BE5705E9E0

Defender cabs can be downloaded here: https://mega.nz/folder/S8xknZDK#heADKKYAv9w2HUQV6s8Ntw

Download the previous two versions of supported defender cabs:-

https://mega.nz/folder/C4h3TALT#sD9qhmluImsDV7YGhpBADg

Please Note - Defender cabs (x64, arm64 and x86) will continue to be updated until end of the Windows 10 ESU programme.

Users that are running both Enterprise editions of LTSC 2021, defender cabs will continue to be made for x64 until end of support of both SKU's. As for x86, I will continue making cabs until end of support date of the LTSC Enterprise 2021 version. Which is on January 12th, 2027!

I missed something. I apologize for that. I thought Defender should be uninstalled, not updated. Would you please help me to understand. Thank you.

[steven4554]

User choice, some people prefer to have a Antivirus installed and kept up to date. So that's the reason why I update these defender cabs once a week cause I like to help others, and if it keeps other people protected from online threats like malware, ransomware, etc then I feel better knowing that.

Of course you don't have to have a antivirus software installed or one that comes built-in, as I said it's down to the user to decide that.