KB5034467 Cumulative Update Preview .NET Framework 3.5 and 4.8.1 (22H2 and 23H2)

Microsoft Support:

January 23, 2024 - KB5034467 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2

The January 23, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.

Summary

Security Improvements

There are no new security improvements in this release. This update is cumulative and contains all previously released security improvements.

Quality and Reliability Improvements

There are no new Quality and Reliability Improvements in this update.

ASP.NET	- Addresses an issue with "System.ArgumentException: Illegal characters in path" in some ASP.Net MVC requests.
.NET Libraries	- Addresses an issue where version of the OSS zlib library is out of date.

Known issues in this update

Microsoft is not currently aware of any issues in this update.

How to get this update

Install this update

Release Channel	Available	Next Step
Windows Update and Microsoft Update	Yes	Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you’ll find the link to download and install the update.
Windows Update for Business	Yes	Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you’ll find the link to download and install the update.
Microsoft Update Catalog	Yes	To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)	No	You can import this update into WSUS manually. See the Microsoft Update Catalog for instructions.

File information

For a list of the files that are provided in this update, download the file information for cumulative update.

Prerequisites

To apply this update, you must have .NET Framework 3.5 or 4.8.1 installed.

Restart requirement

You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

Source:

February 13, 2024-KB5034467 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2 - Microsoft Support

support.microsoft.com

.NET Framework January 2024 Cumulative Update Preview - .NET Blog

January 2024 Cumulative Update Preview Updates for .NET Framework.

devblogs.microsoft.com

Last edited: Feb 8, 2024

Click to expand...

Ghot

Well-known member

Guru

VIP

Jan 23, 2024

It doesn't break anything.

My Computers

System One System Two

OS

Win 11 Home ♦♦♦26100.2894 ♦♦♦♦♦♦♦24H2 ♦♦♦non-Insider

Computer type

PC/Desktop

Manufacturer/Model

Built by Ghot® [May 2020]

CPU

AMD Ryzen 7 3700X

Motherboard

Asus Pro WS X570-ACE (BIOS 4702)

Memory

G.Skill (F4-3200C14D-16GTZKW)

Graphics Card(s)

EVGA RTX 2070 (08G-P4-2171-KR)

Sound Card

Realtek ALC1220P / ALC S1220A

Monitor(s) Displays

Dell U3011 30"

Screen Resolution

2560 x 1600

Hard Drives

2x Samsung 860 EVO 500GB,
WD 4TB Black FZBX - SATA III,
WD 8TB Black FZBX - SATA III,
DRW-24B1ST CD/DVD Burner

PSU

PC Power & Cooling 750W Quad EPS12V

Case

Cooler Master ATCS 840 Tower

Cooling

CM Hyper 212 EVO (push/pull)

Keyboard

Ducky DK9008 Shine II Blue LED

Mouse

Logitech Optical M-100

Internet Speed

300/300

Browser

Firefox (latest)

Antivirus

Bitdefender Internet Security

Other Info

Speakers: Klipsch Pro Media 2.1
Operating System

Windows XP Pro 32bit w/SP3

Computer type

PC/Desktop

Manufacturer/Model

Built by Ghot® (not in use)

CPU

AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)

Motherboard

ASUS M2N32-SLI Deluxe Wireless Edition

Memory

TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)

Graphics card(s)

EVGA 256-P2-N758-TR GeForce 8600GT SSC

Sound Card

Onboard

Monitor(s) Displays

ViewSonic G90FB Black 19" Professional (CRT)

Screen Resolution

up to 2048 x 1536

Hard Drives

WD 36GB 10,000rpm Raptor SATA
Seagate 80GB 7200rpm SATA
Lite-On LTR-52246S CD/RW
Lite-On LH-18A1P CD/DVD Burner

PSU

PC Power & Cooling Silencer 750 Quad EPS12V

Case

Generic Beige case, 80mm fans

Cooling

ZALMAN 9500A 92mm CPU Cooler

Mouse

Logitech Optical M-BT96a

Keyboard

Logitech Classic Keybooard 200

Internet Speed

300/300

Browser

Firefox 3.x ??

Antivirus

Symantec (Norton)

Other Info

Still assembled, still runs. Haven't turned it on for 13 years?

PurSpyk!!

Well-known member

Member

VIP

Jan 24, 2024

Installed thanks

My Computer

System One

OS

Windows 11

Computer type

PC/Desktop

Manufacturer/Model

Custom Built

CPU

Intel i9 14900KF

Motherboard

Asus z790 ProArt Creator WiFi

Memory

64GB Corsair Vengeance RGB

Graphics Card(s)

MSI 4090 Suprim X

Sound Card

Onboard

Monitor(s) Displays

1 x Asus 24". 1 x Asus 32"

Screen Resolution

1920x1080 & 2560 x 1440

Hard Drives

Multiple

PSU

Corsair 1200HX

Case

Corsair 7000D RGB

Cooling

Corsair H150I Capellix XT

Keyboard

Corsair K70 RGB MK.2

Mouse

Corsair M55 RGB Pro

Internet Speed

1000Mb/s

Browser

Edge

Antivirus

Windows Default

garioch7

Retired R.C.M.P. Veteran

Member

VIP

Jan 24, 2024

All good here.

Have a great day.

Regards,
Phil

My Computers

System One System Two

OS

Windows 11 Pro Version 24H2 (Build 26100.2894)

Computer type

PC/Desktop

Manufacturer/Model

Dell XPS8930 SE

CPU

Intel i7-9700K 4700 MHz

Motherboard

Dell XPS 8930

Memory

32 GB (4 x 8GB SK Hynix DDR4 @1333 MHz) (2666 MHz)

Graphics Card(s)

NVIDIA GeForce RTX 2060 (6 GB) GDDR6 300 MHz

Sound Card

None

Monitor(s) Displays

Dell UltraSharp U2518D 25"

Screen Resolution

2560 x 1440

Hard Drives

NVMe Intel 1024 TB
Seagate 2 TB, SATA-III

PSU

850 W Gold Standard

Case

Dell XPS 8930 Base (Special Edition)

Cooling

Air

Keyboard

Dell 0G4D2W

Mouse

Dell MOCZUL

Internet Speed

Download 553 Mbps, Upload 686 Mbps

Browser

Google Chrome

Antivirus

ESET Smart Security Premium, plus Malwarebytes Premium

Other Info

BIOS Version 1.1.31
Operating System

Windows 11 Pro Version 23H2 (Build 22631.4751)

Computer type

Laptop

Manufacturer/Model

Dell XPS 15 7590

CPU

i7-9750H 4.5 GHz

Motherboard

Dell XPS 15 7590

Memory

16 GB (2 x 8GB @ 1333 MHz) DDR4-2666 MHz

Graphics card(s)

NVIDIA GeForce 1650 4 GB GDDR5

Sound Card

None

Monitor(s) Displays

Dell XPS 15 7590, 15.6" InfinityEdge Anti-Glare, Non-Touch

Screen Resolution

1920 x 1080

Hard Drives

512 GB M.2 PCle NVMe SK Hynix

PSU

130W Power Adapter

Case

Dell XPS 15 7590

Cooling

Air

Mouse

Logitech M510

Keyboard

Laptop

Internet Speed

Download: 400 Mbps, Upload: 203 Mbps

Browser

Google Chrome

Antivirus

ESET Smart Security Premium, plus Malwarebytes Premium

Other Info

BIOS Version 1.33.0

asturias7

Well-known member

Power User

Jan 24, 2024

Got it today as an Optional Update. So far so good. :thumbsup:

My Computer

System One

OS

Windows 11 Pro (Beta Build 22635.4800)

Computer type

PC/Desktop

Manufacturer/Model

Alienware

JGToy

Too young to know

Member

VIP

Jan 25, 2024

This one being offered as an "Optional" update!

My Computer

System One

OS

Windows 11

Computer type

PC/Desktop

Manufacturer/Model

Asus/Custom Build

CPU

Intel® Xeon® X5690 3.47GHz Six-Core

Motherboard

Asus P6T Deluxe v2

Memory

G.Skill PC3-12800 1600MHz 24GB

Graphics Card(s)

NVIDIA GeForce GTX 1050

Sound Card

SoundMAX ADI AD2000B HD Audio

Monitor(s) Displays

Acer T232HL Touch Screen

Screen Resolution

1920 x 1080 @ 60Hz

Hard Drives

6 Crucial MX500 SSD 1TB each.

PSU

Thermaltake Toughpower Gold 850W

Case

Thermaltake Armor VA8000SWA

Cooling

Thermaltake Air Cooling System

Keyboard

Illuminated Multimedia LED Keyboard

Mouse

M16 Dual Mode Illuminated Mouse - Bluetooth / 2.4 GHz Mode

Internet Speed

800 Mbps

Browser

Edge / Opera / Vivaldi / Chrome / Firefox / Brave

Antivirus

Windows Defender Security

JGToy

Too young to know

Member

VIP

Jan 25, 2024

Almost there...

And it is done!

My Computer

System One

OS

Windows 11

Computer type

PC/Desktop

Manufacturer/Model

Asus/Custom Build

CPU

Intel® Xeon® X5690 3.47GHz Six-Core

Motherboard

Asus P6T Deluxe v2

Memory

G.Skill PC3-12800 1600MHz 24GB

Graphics Card(s)

NVIDIA GeForce GTX 1050

Sound Card

SoundMAX ADI AD2000B HD Audio

Monitor(s) Displays

Acer T232HL Touch Screen

Screen Resolution

1920 x 1080 @ 60Hz

Hard Drives

6 Crucial MX500 SSD 1TB each.

PSU

Thermaltake Toughpower Gold 850W

Case

Thermaltake Armor VA8000SWA

Cooling

Thermaltake Air Cooling System

Keyboard

Illuminated Multimedia LED Keyboard

Mouse

M16 Dual Mode Illuminated Mouse - Bluetooth / 2.4 GHz Mode

Internet Speed

800 Mbps

Browser

Edge / Opera / Vivaldi / Chrome / Firefox / Brave

Antivirus

Windows Defender Security

chaundy

New member

Feb 9, 2024

I have issues with KB5034467. Caused the explorer.exe to keep crash in Windows menu. was unable to load anything from menu as it woudl crash seconds later. took me a few hours of trying different things nearly at point of windows reinstall. but uninstall of KB5034467 resolved issue. i have event logs showing this