The Update BureauKB5055175: Cumulative update for .NET Framework, versions 3.5 and 4.8, on Windows 10 1809 and Windows Server 2019, April 2025. Large WPF print jobs and network-share file operations addressed
In short
The update addresses problems with printing many pages in WPF and using .NET file and directory APIs on network shares. It adds no new security improvements and includes previously released ones.
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
WPF
Verified in package
-
Addresses a problem that can interrupt printing large numbers of pages.1
Addresses an issue with printing large numbers of pages due to an
OutOfMemoryexception.
.NET Fundamentals
-
Addresses an issue with .NET apps using file and directory operations on network shares.2
Addresses an issue where
System.IOAPIs are used to operate on files and directories on UNC shares.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2025-04-08
- Classification
- Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
- KB5046269
- Replaced by
- KB5062068
| Version | File version | Channel |
|---|---|---|
| 3.5 | 2.0.50727.9066 | General availability |
| 4.8 | 4.8.4785.0 | 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
55 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| WPF | 24 |
| .NET runtime (CLR) | 12 |
Verified in package: changed files confirm WPF.
Sources
Updated
Cited passages from Microsoft's official notes (2)
-
1.
Addresses an issue with printing large number of pages due to an OutOfMemory exception.
support.microsoft.com -
2.
Addresses an issue where System.IO APIs are used to operate on files and directories on UNC shares.
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 4/5, 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