Windows 10 KB5040525 Released to Fix Issues: Download/Install

This July 2024 non-security update, Windows 10 KB5040525, addresses several key issues impacting Windows 10 22H2. This tutorial explains what's new, how to download and install it, and offers solutions for installation problems.

Windows 10 Preview Update KB5040525 Overview

Released on July 23, 2024, KB5040525 (build 19045.4717) focuses on bug fixes rather than introducing new features. Key improvements include:

1. Windows Defender Application Control (WDAC) Enhancements: Resolves issues where WDAC stops working with over 32 policies, addresses memory leaks during provisioning, and fixes app failures related to Application ID policies.
2. Improved Windows Backup: Fixes failures in Windows Backup when an EFI system partition (ESP) is present.
3. Universal Print Functionality: Addresses communication problems between Universal Print clients and the service when WPAD (Web Proxy Auto Discovery) is enabled, restoring printing capabilities.
4. Print Support App Stability: Fixes unresponsiveness and printing failures in the Print Support app when used with USB devices.
5. TCP Send Code Optimization: Resolves a system unresponsiveness issue caused by an extended send loop in the TCP send code, improving stability during file transfers and other tasks.

Additional fixes include resolving a WPA3 issue and addressing a known DHCP Option 235 problem.

How to Install KB5040525

Two methods are available for installing this update:

Method 1: Windows Update

1. Open Settings (Win I), then go to Update & Security > Windows Update.
2. Check for updates. The update, titled something like "2024-07 Cumulative Update Preview for Windows 10 Version 22H2 for x64-based Systems (KB5040525)," will appear.
3. Download and install the update. A restart may be required.

Method 2: Microsoft Update Catalog

If Windows Update fails, manually download the update:

1. Go to https://www.php.cn/link/60ad0ddf6788af6c96d80d44f0f0ccf5 in your web browser.
2. Select the correct version for your system architecture and click Download.
3. Download the .msu file.
4. Double-click the downloaded .msu file to begin installation.

Troubleshooting Installation Problems

If KB5040525 fails to install, try these solutions:

1. Run the Windows Update Troubleshooter: Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters. Select Windows Update and run the troubleshooter.

2. Reset Windows Update Components: Refer to a guide on how to reset Windows Update components (search online for instructions).

3. Run SFC and DISM: Open Command Prompt as administrator and run these commands:

   • sfc /scannow
   • DISM /Online /Cleanup-image /RestoreHealth

Conclusion

This update addresses significant issues. Use either installation method, and if problems occur, utilize the troubleshooting steps provided.

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