Windows 10 build 18343 (19H1, 1903) download ISO file

Windows 10 build 18343 (19H1, 1903) download ISO file February 23, 2019

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A new test build of Windows 10 Insider Preview build 18343, version 1903 (19H1), is available for Windows Insider members with update priority Early Access.

Windows 10 Insider Preview build 18343.1 (19h1_release) is a new build of Windows 10 (version 1903) that 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.

New in Windows 10 build 18343 (version 1903)

As usual, the pre-build at this stage of testing does not receive new features, but includes a list of known bugs and fixes.

Windows Sandbox received support for configuration files

In Build 18342, developers announced that the Windows Sandbox now supports configuration files. These files allow users to customize some aspects of the sandbox, such as a virtual graphics processor (vGPU), network and shared folders. You can read more in the Microsoft Tech Community blog (we will prepare a separate review on our website soon).

Major changes, improvements and bug fixes

Fixed a problem with connecting in sleep mode for Intel64 Family 6 Model 142 and Intel64 Family 6 Model 158 processors. Owners of these processors who could not install Build 18342 a few days earlier can install this assembly.
The function “Return computer to its original state” and the option “Save my files”, on a device with Backup enabled, no longer require manual reboot and correctly displays the operating status of Backup.

Known Issues

Running games that use anti-cheat programs can lead to a “green screen of death” (GSOD).
Solves the problem of working sound cards Creative X-Fi in collaboration with the company Creative.
Work continues on the elimination of errors in the work of a dark theme.
Some Realtek SD card readers may not work correctly.
In the Windows sandbox, if you try to go to the Voice Announcement settings, the Settings application crashes with an error.
The color of the mouse pointer may be mistakenly switched to white, after logging out and re-entering the system.
Chinese version of some games do not work.
Developers! If you install any of the latest “Early Access” builds and then switch to “Late Access”, additional content, such as turning on developer mode, will not work. To add / install / enable optional content, you need to stay on the Early Access channel.
A full list of improvements, changes and known bugs is available in the official announcement on the Microsoft website.

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.

Creating ISO image

If you want to perform a clean installation of Windows 10 Insider Preview build 18343, 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 the following instructions:

Download the generated archive, unpack and run the file creatingISO.cmd.

Since this is a command line script, the Windows Defender SmartScreen filter will show a warning before starting – “Windows has protected your computer.” Click “Read More” and execute “Run anyway“. For security, you can always analyze the contents of the script manually before launching it.

Wait for the automatic downloading of UUP packages from official Microsoft servers and the creation of a bootable ISO image version 18343.

Use the generated ISO to install the latest version of Windows 10 Insider Preview 18343.


You can download ISO file below:

Download ISO file Windows 10