June 2025 Update Preview: Build 19045.5912 (KB5058481) for Windows 10 Released

Unveiling the June 2025 Update for Windows 10

The June 2025 Update for Windows 10, identified as KB5058481 (build 19045.5912), has started its rollout through the Release Preview Channel. This preview brings notable enhancements and critical maintenance improvements to users of the Windows 10 22H2 version.

New Features and Enhancements

This update features the return of the clock view in the Calendar flyout, now showing seconds.
It includes functionalities that highlight upcoming events within the next 30 days.
Microsoft has introduced various bug fixes to optimize performance and user experience.

The update is geared towards enhancing the Calendar feature significantly. As per the official announcement, it also rectifies issues pertaining to the GB18030 and GB18030-2022 character sets, addressing a problem of excessive server load experienced by the Windows Account Sync Consent system in the European Economic Area.

Windows 10 Calendar flyout showcasing additional features / Image: Mauro Huculak

It is essential to note that while this update is released in the Release Preview Channel, updates will be formally identified as security updates in the stable release after the Patch Tuesday Update, aimed for June 2025.

Step-By-Step Update Installation

To ensure you gain access to the latest features from the June 2025 Update, follow these quick steps to enroll your device in the Release Preview Channel:

Navigate to the “Update & Security” section in your Windows settings.
Select the “Windows Insider Program” settings.
Enroll your device by selecting the Release Preview Channel.
Enable the option labeled “Get the latest updates as soon as they’re available”.
Click on “Check for Updates” in the “Windows Update” settings to download and install the update.

This straightforward process ensures that you stay up to date with the latest software enhancements and fixes, truly revolutionizing your PC experience!

Understanding End of Support for Windows 10

Mark your calendars: Microsoft has set the official end of support for Windows 10 to be October 14, 2025. This crucial date will mark the cessation of all security updates, bug fixes, and technical support for the Windows 10 operating system. Without continued updates, your system will face increased vulnerabilities and a potential decline in performance.

If you wish to continue benefiting from a secure environment, consider transitioning to Windows 11 or another alternative, like Linux Mint. For those committed to staying on Windows 10, Microsoft now extends Extended Security Updates (ESU) to regular users, a service previously reserved for organizations.

Update Notice (May 13, 2025): This page has been refreshed with the latest updates, reaffirming our commitment to providing accurate and timely information.

Frequently Asked Questions

1. What are the new features included in the June 2025 Update for Windows 10?

The June 2025 Update introduces a refreshed Calendar flyout with the clock showing seconds, an overview of upcoming events for the next 30 days, and various non-security fixes aimed at improving system performance.

2. How can I install the June 2025 Update on my Windows 10 device?

To install the update, ensure your device is enrolled in the Release Preview Channel via “Windows Insider Program” under the “Update & Security” settings. Then, activate the option to receive the latest updates and check for updates to begin the installation.

3. What does the end of support for Windows 10 mean for users?

After October 14, 2025, Microsoft will cease all security updates and support for Windows 10, which may expose users to security risks. Users are encouraged to upgrade to Windows 11 or consider Extended Security Updates (ESU) for continued protection.

Source & Images