Windows 10 19H1 Build 18312 Brings Reserved Storage, More

Microsoft is rolling out a minor new Windows 10 build to Insiders in the Fast Ring. Build 18312 is rolling out to Insiders today, with a number of new features and bug fixes.

The build introduces Reserved Storage, which is a new system in Windows that reserves 7GB of your device’s storage space for seamless Windows Updates. The feature will be automatically in effect on PCs that come with Windows 10 build 19H1 pre-installed or where 19H1 was clean installed, so you won’t be able to use the feature just by updating your device to the new build. However, you can finish this Windows Insider quest before installing build 18312 to get the feature right away after you upgrade.

Microsoft is also improving the “Reset this PC” UI in Windows 10 that makes the experience more consistent across all devices and reduces the number of clicks required to complete the process. The build also comes with an increase to the Fiber Local Storage slot limit, which apparently prevented music producers from loading as many plugins as they want into their DAWs.

The latest build comes with some improvements to the Windows Subsystem for Linux, and a bunch of bug fixes. You can find the full changelog here.

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  • Dan1986ist

    Premium Member
    09 January, 2019 - 2:01 pm

    <p>Once this build installs, I'll be able to see how space this Reserved Storage takes up on a 64 GB Dell Venue 8 Pro which only has 50 GB of space for Windows, programs, apps, whatever.</p>

    • akcanuck

      09 January, 2019 - 3:45 pm

      <blockquote><em><a href="#393160">In reply to Dan1986ist:</a></em></blockquote><p>You should probably reread the story.</p>

      • Dan1986ist

        Premium Member
        09 January, 2019 - 7:51 pm

        <blockquote><em><a href="#393207">In reply to akcanuck:</a></em></blockquote><p>Sounds like Microsoft wants people to do things to the registry without backing it up first before making any changes, like enabling Reserved Storage via a registry key. Doesn't matter if one is a longtime tester of Insider builds or not, one should back up the registry beforehand.</p>

  • bluvg

    09 January, 2019 - 3:09 pm

    <p>Nice!</p><p><br></p><h2 class="ql-indent-1"><strong>FLS Slot Limit Increase</strong></h2><p class="ql-indent-2">As PCs get more powerful, musicians have created increasingly complex projects with more tracks, more instruments, and deeper effects chains. As a result, some of those musicians were running up against a FLS (Fiber Local Storage) slot allocation ceiling that prevented them from loading into their DAWs (Digital Audio Workstations) as many unique plugins as they’d like. 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.</p>

    • Rob_Wade

      10 January, 2019 - 12:27 pm

      <blockquote><em><a href="#393199">In reply to bluvg:</a></em></blockquote><blockquote><em>Yes, I'm happy about this one, too. I use Sonar for music production in my home studio, I'm excited that I may not have to do a bunch of track bouncing in the future. Finally, a feature that I can actually use.</em></blockquote><p><br></p>

  • warren

    09 January, 2019 - 5:54 pm

    <p>What they really need to do is to make it clear what the difference is between "Fresh start" in Defender, and "Reset this PC" in Settings. Doesn't make sense that there are buttons in completely different places, with different names, that do basically the same thing.</p>

  • CompUser

    09 January, 2019 - 7:12 pm

    <p>I completed the quest prior to installing Build 18312, as you advised, and System &amp; reserved is there. Mine shows 12.8 GB for system files (seems high), 2.5 GB for reserved storage (seems low), 2.12 GB for virtual memory (seems high), and 3.17 GB for hibernation files (I don't use hibernation so this seems very high). The build installed nicely though, and seemed to take less time than previous builds.</p>

  • TigerTom

    10 January, 2019 - 10:47 am

    <p>It's good to see that they seem to be focusing more on polishing the OS in this release.</p><p><br></p><p>Streamlining the install &amp; update process would be welcome progress.</p><p><br></p><p>I'm wondering if their ultimate goal here is to be like android and have a shadow copy that updates in the background to minimise any downtime.</p>

  • Rob_Wade

    10 January, 2019 - 12:26 pm

    <p>I was unable to upgrade from 18305 to either 18309 or 18312 because of an error caused by KB4483214. It turns out I had to uninstall that just to get the updates to work.</p>

  • hrlngrv

    Premium Member
    11 January, 2019 - 1:37 am

    <p>FWLIW, this one is taking forever to download for me.</p>


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