The Update BureauKB5062068: Cumulative update for .NET Framework, versions 3.5 and 4.8, on Windows 10 1809 and Windows Server 2019, July 2025. TypeDescriptor concurrency and .NET error dialogs addressed
In short
The update addresses a .NET concurrency issue and error-reporting dialogs triggered by interactions between .NET Framework DLL loads and Windows code integrity enforcement.
Does it affect you? Applies to: Devices running Windows 10, version 1809, or Windows Server 2019 with .NET Framework 3.5 or 4.8 installed.
What changes
Fixes 2 changes
.NET Libraries
-
A concurrency issue involving .NET property and type information is addressed.1
Addresses an issue with concurrency in
TypeDescriptor.GetProperties()andTypeDescriptor.GetConverter().
.NET Runtime
-
Error-reporting dialog boxes caused by interactions between .NET Framework DLL loads and Windows code integrity enforcement are addressed.2
Addresses interactions between .NET Framework DLL loads and OS code integrity enforcement policy that trigger error-reporting dialog boxes.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2025-07-08
- Classification
- Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
- KB5055175
- Replaced by
- KB5065755
| Version | File version | Channel |
|---|---|---|
| 3.5 | 2.0.50727.9066 | General availability |
| 4.8 | 4.8.4795.0 | General availability |
Security
No vulnerabilities are listed for this update.
Downloads (Microsoft Update Catalog)
x64
Windows 10 Enterprise LTSC 2019 / Windows Server 2019
88.4 MB
x86
Windows 10 Enterprise LTSC 2019
50.3 MB
Updated components
19 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| .NET runtime (CLR) | 12 |
Sources
Updated
Cited passages from Microsoft's official notes (2)
-
1.
Addresses an issue with concurrency in TypeDescriptor.GetConverter()issue in TypeDescriptor GetProperties() and GetConverter().
support.microsoft.com -
2.
Addresses an issue where interactions between .NET Framework DLL loads and OS code integrity enforcement policy trigger error reporting dialog boxes.
support.microsoft.com
Checked automatically: 8 of 8 checks passed, 2 quoted passages · compared with Microsoft's page on Oct 20, 2026
- Quotes found in the official pages: passed
- Numbers found in the sources: passed
- Vulnerabilities from the dossier only: passed
- Links to allowed domains only: passed
- Every official change covered: passed
- Readable plain text: passed
- Changes confirmed by the file list: passed
- Sources agree: passed
A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 5/5. How we work
Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake