Download Windows 10 ISO 18358 (version 1903 or 19H1)

A new test build of Windows 10 Insider Preview build 18358, version 1903 (19H1), is available for Windows Insider members with update priority Early Access.

Windows 10 Insider Preview build 18358.1 (19h1_release) is a new build of Windows 10 (version 1903), which is available to members of the Windows Insider program with the priority of receiving updates Early Access.

This assembly belongs to the development branch 19H1_RELEASE of the next major update Windows 10 19H1, which is expected in spring (March-April) of 2019.

The assembly is characterized by the absence of a trial period and a “watermark” in the lower right corner of the desktop. But this does not mean that this is the final RTM build.

The Microsoft team is approaching the final stage of the 19H1 development cycle, when the main forces of developers will be thrown at fixing known errors and improving the stability of the new version.

New in Windows 10 build 18358 (version 1903)

Extension “Application Guard in Windows Defender” for browsers Chrome and Firefox

Microsoft introduced the Application Guard in Windows Defender for Google Chrome and Mozilla Firefox browsers, which allows you to view untrusted websites in a separate Microsoft Edge window to protect your device from complex threats and advanced attacks.

The extension works in Windows 10 Pro 1803 and higher or Enterprise version 1709 and higher. To work, you must enable the Application Guard component in Windows Defender and install the Windows Defender Application Guard Companion application from the Microsoft Store.

Major changes, improvements and bug fixes

For gamers: Fixed a problem with the game mode, which could degrade the quality of playback and recording for streaming video.
Latest information about new gaming technology Windows:
If you were not able to get the game State of Decay for free (for a limited time), the developers have added more slots available! If you previously had problems with getting and installing – try again.
Have you already installed an insider version of State of Decay? Try installing the update. To get it, launch the Microsoft Store application, click […], and then “Downloads and Updates”. After installing the update, you will not see anything new in the game – this is just a test update – but please inform Microsoft if something is not working!
Fixed an issue where thumbnails of windows when you pressed Alt + Tab sometimes became displaced.
Fixed an issue where some update paths caused the contents of the Recycle Bin to remain in the Windows.old folder.
Fixed an issue that caused updates to fail by 18% or 25% and rolled back for some insiders.
Fixed an issue where some insiders had a green screen with KERNEL_SECURITY_VIOLATION error.
Fixed an issue where recently some applications using the Windows Installer (Windows Installer) have not been installed.

Installation via Windows Update

Go to Settings > Update and Security and click Check for Updates. To complete the installation, you will need to restart the computer.

Download Windows 10 build 18358 ISO (19H1)

If you want to perform a new installation of Windows 10 Insider 18358, then using the WZT-UUP service, you can download UUP files directly from the official Microsoft servers and automatically create a bootable ISO image using this instruction:

How to download Windows 10 ISO and create a boot image.

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