Windows 10 2003 build 18836 (20H1) – download ISO file (February 14 2019)


A new test build of Windows 10 build 18836 (20H1) is available to members of the Windows Insider program who chose the “Skip Ahead” option to receive the Pre-release builds of the next Windows 10 feature update.

Windows 10 Insider Preview build 18836.1000 is an assembly code-named 20H1, which is available to members of the Windows Insider program with the priority of receiving Skip Ahead updates.

This assembly belongs to the development branch RS_PRERELEASE of the next major update of Windows 10, which is expected in spring (March-April) of 2020.

Skip Ahead – for the 2020 update

As noted by Microsoft, some of the new features they are working on updating Windows 10 components for the first half of 2020 (20H1) will take more time to develop and test.

Windows 10 (19H2) builds will be available to insiders later this spring (on the Early Access channel) after the Windows 10 (19H1) – April 2019 Update (version 1903) update is almost complete and ready.

As soon as the 19H1 is “almost finished and ready,” Microsoft will use the Release Preview channel to pre-test drivers and quality updates.

New to Windows 10 build 18836 (20H1)

Major changes, improvements and bug fixes

Important: A new feature for protecting important system parameters from unauthorized access “Anti-Counterfeit” in Windows Security helps prevent intruders from accessing system settings. This option is enabled by default, but is not yet applicable for current builds of Insider Preview. In the Windows Security application, you may be advised to enable this option.
Corrected an issue that caused disabling location in the Action Center to require several clicks to respond.
Fixed an issue where the pinned folders could not be rearranged in the Start menu grid.
Fixed an issue where recently installed applications might not appear in search results.
Fixed a bug due to which some insiders could not open Cortana in tablet mode.
Fixed the issue of the previous release, when right-clicking on the desktop caused a light context menu, with the dark theme turned on.
Changed the name of the light interface theme from “Windows light” to “Windows (light)”.
Fixed an issue where the Cortana icon on additional monitors did not update the color after switching between light and dark themes.
Fixed an issue where when using a light theme at the same time + small icons + vertical orientation of the taskbar, the text on the taskbar remained white and unreadable.
Open applications might not appear on the taskbar (but were visible in Alt + Tab). The problem has been fixed.
Fixed a problem present in the last two builds, because of which it was not possible to log in to the recovery environment with an administrator account.
Fixed notification of devices that left hibernation.
A gray display will no longer have a pinkish tint in some cases.
Fixed a bug where the settings, cursor size and color were not saved.
Windows security may show an undefined status of protection against viruses and threats or not be updated in the right way. The problem has been fixed.
Work is under way on Creative X-Fi sound card errors, but some problems have not yet been fixed.

Known Issues

Running games that use anti-cheat programs can lead to a “green screen of death” (GSOD).
The dark theme of Windows still contains a number of errors and flaws, but some of them have been fixed.
The function “Return computer to its original state” and the option “Save my files”, on the device with the Backup storage enabled, will require a manual additional reboot to make sure that the Backup storage is working properly again.
Some Realtek SD card readers may not work correctly.
Explorer may hang when trying to rename, delete, or move MKV files.
In the Windows Sandbox, if you try to go to the Voice Announcement settings, the Settings application crashes with an error.
Microsoft is working with Creative to quickly solve the problem of working with Creative X-Fi sound cards.
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.

Download Windows 10 build 18317 (19H1)

Alternative download

If you want to perform a new installation of Windows 10 Insider 18836, 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 instructions:

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


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