System Experience

Windows 1903 system 

As part of the Windows 1903 System, Microsoft is introducing a new group policy to prevent the use of security questions for local accounts. This can be found under Computer Configuration > Administrative Templates > Windows Components > Credential User Interface.

Reserved Storage – Windows 1903 System

In the May 2019 update of the Windows 1903 System, Microsoft is also introducing “Reserved Storage,” a new feature that sets aside part of your device’s available storage.

As a result, this will prevent future issues when upgrading to a new version or installing updates due to lack of space.

“Reserved Storage” will save about 7GB of storage for updates, temporary files, system cache and applications.

When a new update is available, Windows 10 will delete the files stored in the reserved storage to make room for the update.

If you still don’t have enough space, then the Windows 1903 system will clean up other files. In the event that there’s still not enough space, Microsoft will advise you to free up space manually or connect an external storage device, such as a USB flash drive, which can be used as temporary storage.

The amount of reserved space may increase in the future, depending on how you used the device and based on diagnostic data.

You cannot delete the reserved storage, but you can adjust the amount of storage the system sets aside by removing option features or languages installed on tour device.

The reserved storage feature is enabled automatically on devices that come preinstalled with Windows 10 1903 or after performing a clean installation of the operating system.

Fiber Local Storage (FLS)

The Windows 1903 system is increasing its per-process Fiber Location Storage slot allocation. The change will positively impact any application that dynamically loads hundreds or thousands of unique DLLs that have statically-linked Visual C++ runtimes or allocate FLS slots.


In the Registry, when pressing the F4 key, you’ll see a caret at the end of the address bar, which will expand the autocomplete dropdown menu.


Windows 10 103 system experience is also improving the brightness behavior. This refinement prevents the display from becoming brighter when moving from a battery charger to battery power. That means that when you adjust the display brightness, it makes the brightness level you choose the preferred setting, whether you’re on battery or connected to a power source.

Windows Console

Ctrl + Mouse Wheel Scroll to zoom in text are now supported in Command Prompt, PowerShell and Windows Subsystem for Linux (WSL).

In addition, when using the dark system theme, the scrollbars for Command Prompt, PowerShell and WSL will now become dark as well.

May 2019

The Windows 10 May 2019 Update is also improving the properties page by adding a new “Terminal” tab for consoles, which introduces new settings, such as cursor shapes and colors, terminal colors and more.

In addition, the May 2019 update also introduces refinements for the wsl.exe command line interface. For example, you can import and export distros and consolidate existing features from wslconfig.exe, such as list distros and setting defaults.

Windows Subsystem for Linux

The Windows Subsystem for Linux introduces new functionalities and options to make management easier, including:

  • Consolidated command line options – The command line tool now includes options to manage your Linux distros that are included in the wslconfig command line tool.
  • Import a distro for easy sideloading including to non-system drives – Use the –import option to imports a tar file as a new distribution. You can specify the distribution registry to the location of your choice including non-system drives.
  • Export your WSL distribution for simpler environment management – Use the -export option to export a distribution to a tar file. Your distro will export to your default downloads location.

In addition, if you use Linux on Windows 10, you can now access the Linux files part of the Windows Subsystem for Linux environment.

Task Manager

Windows 1903 system is also updating the Task Manager with a new option to set your preferred tab when opening Task Manager using the Options menu.

Windows Mixed Reality

In this update, Windows 10 adds the ability to launch Desktop (Win32) applications (such as Spotify, Paint.NET, and Visual Studio Code) in Windows Mixed Reality.

In our next post, you’ll learn everything you need to know about the Windows 10 1903 Built-In Apps Experience.