Microsoft has released Windows 10 Insider Preview Build 18356 (19H1) to Insiders in the Fast ring. This release is mostly bug fixes, including numerous Night Light bug fixes and a fix for KERNEL_SECURITY_VIOLATION GSODs.

• Windows 10 Insider Preview Iso

Along with this release, Microsoft is also introducing the Your Phone app feature called Phone Screen, which allows you to mirror your Android screen on a Windows 10 PC.

If you are a Windows Insider in the Fast ring, you can update to Windows 10 Insider Preview Build 18356 by going into Settings -> Update & Security -> Windows Update and then checking for new updates.

Below are the notable changes in this build as well as the general changelog. To see the entire release notes, you can read the blog post.

UPDATE 3/15: Hello Windows Insiders, we have released Windows 10 Insider Preview Build 18356.1 (19H1) to Windows Insiders in the Slow ring. ADDED 3/13 IMPORTANT NOTE: Some Windows Insiders may have had their devices opted out of receiving new builds after installing Build 18356.

Phone Screen feature comes to Your Phone app

For Insiders using 19H1 builds, Microsoft is rolling out a new preview build of the Your Phone app that contains the Phone Screen feature. This new feature will be available in Your Phone app versions 1.0.20701.0 and above.

The Phone Screen feature allows you to mirror your Android phone on your Windows 10 PC. This allows you to directly manipulate the phone, easily take screen shots, and even make phone calls. This is particularly useful if your authentication apps are on your phone as you can now access auth codes without pulling the phone from your pocket.

Windows 10 Insider Preview Iso

In order to use the new Phone Screen feature, your phone and PC must have the following requirements.

• Select Android phones* running Android 7.0 or greater (*Samsung Galaxy S8/S8+/S9/S9+).
• Windows 10 PC with a Bluetooth radio that supports low energy peripheral role. How to check if your PC supports this.
• Latest 19H1 preview build (18335+ recommended).
• Android phone must be on, within Bluetooth range of the PC, and connected to the same network as the PC.

There are also some known issues, which are described below.

• Touch input doesn’t work yet
• Always on display will not be shown on the phone screen displayed on the PC
• Blue light preferences will not be applied on the phone screen displayed on the PC
• Audio will play out of the phone speakers, not the PC
• Double clicking may bring down notification center
• Some games and apps do not support mouse interactions (e.g. Pokémon Go, Merge Dragons, Feedly)
• If you turn on the setting to hide soft keyboard when a physical keyboard is present your soft keyboard will disappear whenever you’re within Bluetooth range of your PC regardless of the state of the Your Phone app or phone screen session

As the new Your Phone app is slowly rolling out, it may take a few days for it to show up on your PC.

General changes, improvements, and fixes for PC

• We fixed a Microsoft Edge crash encountered when interacting with combo boxes in PDF forms.
• We fixed an issue that could result in night light being on after an upgrade, even though all the settings showed that night light should be off.
• We fixed an issue where using the slider to adjust the night light strength could result in night light getting stuck on.
• We fixed an issue where night light was skipping the fade transition when it was turned off (manually or scheduled).
• We fixed an issue resulting in increased battery drain while the screen was on in recent builds.
• We fixed an issue resulting in the “…” menu contents being clipped for certain apps like Voice Recorder and Alarms and Clock when the app was full screen.
• We fixed an issue resulting in some Insiders experiencing bugcheck green screens citing a KERNEL_SECURITY_VIOLATION error.

Known issues

• Launching games that use anti-cheat software may trigger a bugcheck (GSOD).
• Creative X-Fi sound cards are not functioning properly. We are partnering with Creative to resolve this issue.
• Some Realtek SD card readers are not functioning properly. We are investigating the issue.
• We’re investigating an issue preventing VMware from being able to install or update Windows Insider Preview builds. Hyper-V is a viable alternative if available to you.

Known issues for Developers

• If you install any of the recent builds from the Fast ring and switch to the Slow ring, optional content such as enabling developer mode will fail. You will have to remain in the Fast ring to add/install/enable optional content. This is because optional content will only install on builds approved for specific rings.