Update Details
2025-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 for arm64 (KB5064403)
Last Modified:
9/9/2025
Size:
89.3 MB
UpdateID:
2808e09b-6a95-47ec-a8f9-499f80815fcb
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Details:
Overview
Language Selection
Package Details
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Description:
Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information. After you install this item, you may have to restart your computer.
Architecture:
n/a
Classification:
Updates
Supported products:
Windows 11
Supported languages:
all
MSRC Number:
n/a
MSRC severity:
n/a
KB article numbers:
5064403
More information:
https://support.microsoft.com/help/5064403
Support Url:
https://support.microsoft.com/help/5064403
This update has been replaced by the following updates:
2025-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 for arm64 (KB5066133)
This update replaces the following updates:
2025-07 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 for arm64 (KB5056580)
There are no additional languages to select
Restart behavior:
Can request restart
May request user input:
No
Must be installed exclusively:
Requires network connectivity:
No
Uninstall Notes:
n/a
Uninstall Steps:
n/a
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