Windows 10 May 2019 Update

Reserved Storage feature added on Windows 10 preview Build 18312

Microsoft has released a new Windows 10 Preview build 18312 on 19H1 development branch that available for Fast ring insiders. With the latest Windows 10 19H1 preview build 18312 Microsoft officially introduces the “Reserved Storage” feature to reduce problems during updates. Also, there is a new UI for Reset this PC, improvements for the Windows Subsystem for Linux and more.




Download Windows 10 Build 18312

If you have enrolled for Windows insider builds, Windows 10 build 18312 downloads and install automatically on your device. But you can always force the update from  Settings > Update & security > Windows Update, and click the Check for updates button.

Windows 10 Build 18312

What’s new Windows 10 Build 18312?

Here the new features, improvements and bug fixes included on latest 19H1 Build 18312.

Reserved Storage

With the latest preview build, Microsoft’s changes to managing disk space through “reserved storage,” for a smoother upgrade process. As per the company, The purpose of reserved storage is to keep aside around 7GB of disk space for Windows Update and temporary files. and help Microsoft ensure that all Windows 10 devices can seamlessly upgrade to the new release.

Windows 10 reserved storage

The company says,




“Through reserved storage, some disk space will be set aside to be used by updates, apps, temporary files, and system caches. Our goal is to improve the day-to-day function of your PC by ensuring critical OS functions always have access to disk space.” To learn more about the technical details, make sure to read the company’s article on Technet about Windows 10 and Reserved Storage.

FLS Slot Limit Increase

Microsoft explains that in the current Windows 10 builds, musicians come across limitations that prevent them from loading plugins into their Digital Audio Workstations.

“This build greatly raises that per-process FLS slot allocation ceiling, allowing loading potentially thousands of unique plugins. Beyond musicians, this change will positively impact any application that dynamically loads hundreds or thousands of unique DLLs that have statically-linked Visual C++ runtimes, or otherwise allocate FLS slots,” the company explains.

Improvements to Reset this PC Settings UI

Also There is a new “Reset this PC” experience that can be found in Settings > Update > Security > Recovery. It will provide a more consistent reset experience across devices and require less work.

Improvements to Reset this PC Settings UI

In addition to the changes above, here is the list of other changes and improvements to expect:




  • We fixed an issue where the Network shares page in File Explorer used black text in dark theme.
  • We fixed an issue impacting Microsoft Edge reliability in the last few builds.
  • We fixed an issue where USB printers may appear twice in Devices and Printers under Control Panel.
  • We fixed an issue where the console would lose color when spawning a new Command Prompt.
  • Following up on our work earlier this release to make the console scrollbar dark when dark theme is enabled, the title bar will also now bar dark (if you haven’t chosen in Settings to use your accent color in the title bar).
  • We’re adding a group policy for disabling acrylic on the sign-in screen. This can be found in Group Policy Editor under Administrative Templates > System > Logon > “Show clear logon background”.
  • We fixed an issue where custom desktop/Lock screen images deployed by a runtime provisioning package would be removed after Windows Update.
  • We fixed an issue where the shadow behind a flyout might zoom in after the flyout appeared.
  • We fixed an issue where, if enabled, the Windows Start Up Sound might not play after turning on from shutdown or after updating.
  • We fixed an issue where the File Properties dialog wouldn’t show the full timestamp if “Conversational format” was selected for the Date Modified column in File Explorer.
  • We fixed an issue where the hyperlink colors needed to be refined in Dark Mode in Sticky Notes if Insights were enabled.
  • If you were experiencing Sticky Notes stuck on Loading with Build 18309, please check the Microsoft Store for Sticky Notes version 3.5.4.

Microsoftis listing the complete set of improvements, fixes, and known issues for Windows 10 Insider Preview build 18312 at the Windows Blog.

Source windows blog
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