What's New in Windows 11 KB5049624 and How to Install It?

Windows 11 KB5049624 update was released on January 14, 2025, for Windows 11 versions 22H2 and 23H2. This MiniTool guide will detail the improvements in this update and how to install it.

Windows 11 KB5049624 update is designed for Windows 11 22H2 and 23H2 versions. It is a cumulative update for .NET Framework 3.5 and 4.8.1 and will be released on January 14, 2025. The main purpose of this update is to enhance the security and reliability of .NET Framework on Windows 11 systems.

What’s new in Windows 11 KB5049624

This update focuses on addressing critical vulnerabilities, and its security improvements and reliability enhancements are critical to maintaining the integrity and performance of applications built on the .NET Framework. Users recognize the importance of security updates in maintaining system integrity. Here are some improvements in Windows 11 KB5049624:

• Addressed a critical remote code execution vulnerability (CVE-2025-21176) that could allow an attacker to execute arbitrary code on systems running affected versions of the .NET Framework.
• Also fixes a rare issue that could cause an infinite loop when a thread first enters the common language runtime (CLR).

These improvements are critical for developers and users who rely on the .NET Framework to develop applications. Now that you know these improvements, the following will guide you on how to install Windows KB5049624.

How to install Windows KB5049624

Method 1: Use Windows Update to install KB5049624

Windows Update is a service provided by Microsoft for the Microsoft Windows operating system, which can automatically download and install Microsoft Windows software updates through the Internet. Here's how to get KB5049624 using Windows Update:

Step 1: Right-click on the Start button and select the Settings option to open it.

Step 2: In Settings, click Windows Update > Check for Updates.

Step 3: If an update is available for your device, click the Download and Install button. Your device will download and install the update.

If you are prompted to restart your device, please restart to apply the update.

Method 2: Install KB5049624 through the Microsoft Update Catalog

You can also get this update in the Microsoft Update Catalog. This is a service provided by Microsoft that provides a list of Windows updates. You can use it as your one-stop location to find Microsoft software updates, drivers, and patches. Please follow these steps:

Step 1: Visit the Microsoft Update Catalog. You will see the KB5049624 update here.

Step 2: Browse the displayed list to select the update you want to download.

Step 3: Click the Download button and then click the link in the pop-up window to download the update.

**Tip:**

When you update Windows, your original programs and files will be preserved. However, in some rare cases, the update may fail due to various possible issues, which may cause the system to become unbootable. Therefore, as a precautionary measure, it is still recommended to properly backup important files before updating. For example, you can use MiniTool ShadowMaker to backup Windows 11.

Recovery of data lost due to Windows update failure

Some users may experience Windows updates deleting files. Fortunately, you can recover lost data using this free data recovery software MiniTool Power Data Recovery. This tool supports recovery of almost all types of files from different storage devices. It can also retrieve data lost due to failed Windows updates. By the way, you can recover files up to 1GB for free. Download and install it on your computer to get started.

Step 1: Launch this recovery software to enter its main interface.

Step 2: In the Logical Drives tab, find the partition where the lost data is stored. Hover your cursor over the section and click Scan to scan the data.

Step 3: To get the best scan results, you need to wait for the process to complete.

Step 4: After scanning, use the Type, Filter and Search functions to find the files you want.

Step 5: Once you find the files, select them all and click the Save button.

Step 6: In the pop-up window, select a new location to store the recovered files and click OK to start saving.

Step 7: After the recovery is completed, a window will pop up showing the size of the recovered files and the remaining available recovery capacity information.

**Tips:**

If the capacity is used up, you can try to upgrade to the full version, which has no restrictions on data recovery. You can get it in MiniTool Store.

Summary

You now have a better understanding of the new improvements in Windows 11 KB5049624 and how to get this update. Remember to back up Windows before starting the installation. If you have lost data, use MiniTool Power Data Recovery to recover them.

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