Enable or Disable Reserved Storage in Windows 10  

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    Enable or Disable Reserved Storage in Windows 10

    Enable or Disable Reserved Storage in Windows 10

    How to Enable or Disable Reserved Storage in Windows 10
    Published by Category: General Tips
    06 May 2020
    Designer Media Ltd


    How to Enable or Disable Reserved Storage in Windows 10


    To make sure your device can successfully update and that it runs its best, Windows reserves a portion of storage space on your device for use by temporary files, caches, and other files. When your device is low on space, Windows will clear reserved storage so it can be used for other processes, like a Windows update. Reserving storage also helps keep disk space usage on your device more predictable and more stable.

    Starting with the next major update Microsoft is making a few changes to how Windows 10 manages disk space. Through reserved storage, some disk space will be set aside to be used by updates, apps, temporary files, and system caches. Microsoft's goal is to improve the day-to-day function of your PC by ensuring critical OS functions always have access to disk space. Without reserved storage, if a user almost fills up her or his storage, several Windows and application scenarios become unreliable. Windows and application scenarios may not work as expected if they need free space to function. With reserved storage, updates, apps, temporary files, and caches are less likely to take away from valuable free space and should continue to operate as expected. Reserved storage will be introduced automatically on devices that come with version 1903 pre-installed or those where 1903 was clean installed. You donít need to set anything upóthis process will automatically run in the background.

    The Reserved Storage feature is available for Windows 10 build 18298 and higher.

    How does it work?
    When apps and system processes create temporary files, these files will automatically be placed into reserved storage. These temporary files wonít consume free user space when they are created and will be less likely to do so as temporary files increase in number, provided that the reserve isnít full. Since disk space has been set aside for this purpose, your device will function more reliably. Storage sense will automatically remove unneeded temporary files, but if for some reason your reserve area fills up Windows will continue to operate as expected while temporarily consuming some disk space outside of the reserve if it is temporarily full.

    Windows Updates made easy
    Updates help keep your device and data safe and secure, along with introducing new features to help you work and play the way you want. Every update temporarily requires some free disk space to download and install. On devices with reserved storage, update will use the reserved space first.

    When itís time for an update, the temporary unneeded OS files in the reserved storage will be deleted and update will use the full reserve area. This will enable most PCs to download and install an update without having to free up any of your disk space, even when you have minimal free disk space. If for some reason Windows update needs more space than is reserved, it will automatically use other available free space. If thatís not enough, Windows will guide you through steps to temporarily extend your hard disk with external storage, such as with a USB stick, or how to free up disk space.

    How much of my storage is reserved?
    In the next major release of Windows (19H1), Microsoft anticipates that reserved storage will start at about 7GB, however the amount of reserved space will vary over time based on how you use your device. For example, temporary files that consume general free space today on your device may consume space from reserved storage in the future. Additionally, over the last several releases weíve reduced the size of Windows for most customers. Microsoft may adjust the size of reserved storage in the future based on diagnostic data or feedback. The reserved storage cannot be removed from the OS, but you can reduce the amount of space reserved. More details below.

    The following two factors influence how reserved storage changes size on your device:
    • Optional features - Many optional features are available for Windows. These may be pre-installed, acquired on demand by the system, or installed manually by you. When an optional feature is installed, Windows will increase the amount of reserved storage to ensure there is space to maintain this feature on your device when updates are installed. You can see which features are installed on your device by going to Settings > Apps > Apps & features > Manage optional features. You can reduce the amount of space required for reserved storage on your device by uninstalling optional features you are not using.
    • Installed Languages - Windows is localized into many languages. Although most of our customers only use one language at a time, some customers switch between two or more languages. When additional languages are installed, Windows will increase the amount of reserved storage to ensure there is space to maintain these languages when updates are installed. You can see which languages are installed on your device by going to Settings > Time & Language > Language. You can reduce the amount of space required for reserved storage on your device by uninstalling languages you arenít using.

    See also:

    This tutorial will show you how to enable or disable the Reserved Storage feature in Windows 10.

    You must be signed in as an administrator to enable or disable the Reserved Storage feature.



    Contents

    • Option One: Check Current State of Reserved Storage to See if Enabled or Disabled in Command Prompt
    • Option Two: Check Current State of Reserved Storage to See if Enabled or Disabled in PowerShell
    • Option Three: Enable or Disable Reserved Storage in Command Prompt
    • Option Three: Enable or Disable Reserved Storage in PowerShell
    • Option Five: Enable Reserved Storage using a REG file
    • Option Six: Disable Reserved Storage using a REG file



    EXAMPLE: Reserved Storage enabled

    How to Check Reserved Storage Size for Windows Update in Windows 10

    Enable or Disable Reserved Storage in Windows 10-reserved_storage_enabled.png Enable or Disable Reserved Storage in Windows 10-portablebaselayer.jpg






    OPTION ONE

    Check Current State of Reserved Storage to See if Enabled or Disabled in Command Prompt


    This option is only available in Windows 10 version 2004 and higher.

    See also: DISM Reserved Storage Command-line Options | Microsoft Hardware Dev Center


    1 Open an elevated command prompt.

    2 Copy and paste the command below into the elevated command prompt, and press Enter. (see screenshot below)

    DISM /Online /Get-ReservedStorageState

    3 You will now see if the current state of reserved storage is enabled or disabled.

    Enable or Disable Reserved Storage in Windows 10-reserved_storage_command-1.png






    OPTION TWO

    Check Current State of Reserved Storage to See if Enabled or Disabled in PowerShell


    This option is only available in Windows 10 version 2004 and higher.

    For more Get-WindowsReservedStorageState command usage options, see: Get-WindowsReservedStorageState | Microsoft Docs


    1 Open an elevated PowerShell.

    2 Copy and paste the command below into the elevated PowerShell, and press Enter. (see screenshot below)

    Get-WindowsReservedStorageState

    3 You will now see if the current reserved storage state is enabled or disabled.

    Enable or Disable Reserved Storage in Windows 10-get-windowsreservedstoragestate.png






    OPTION THREE

    Enable or Disable Reserved Storage in Command Prompt


    This option is only available in Windows 10 version 2004 and higher.

    See also: DISM Reserved Storage Command-line Options | Microsoft Hardware Dev Center


    1 Open an elevated command prompt.

    2 Copy and paste the command below you want to use into the elevated command prompt, and press Enter. (see screenshots below)

    (Enable reserved Storage - default)
    DISM /Online /Set-ReservedStorageState /State:Enabled

    OR

    (Disable reserved Storage)
    DISM /Online /Set-ReservedStorageState /State:Disabled

    3 You can now close the elevated command prompt if wanted.

    Enable or Disable Reserved Storage in Windows 10-reserved_storage_command-2.png Enable or Disable Reserved Storage in Windows 10-reserved_storage_command-3.png






    OPTION FOUR

    Enable or Disable Reserved Storage in PowerShell


    This option is only available in Windows 10 version 2004 and higher.

    For more Set-WindowsReservedStorageState command usage options, see: Set-WindowsReservedStorageState | Microsoft Docs


    1 Open an elevated PowerShell.

    2 Copy and paste the command below you want to use into the elevated PowerShell, and press Enter. (see screenshots below)

    (Enable reserved Storage - default)
    Set-WindowsReservedStorageState -State Enabled

    OR

    (Disable reserved Storage)
    Set-WindowsReservedStorageState -State Disabled

    3 You can now close the elevated PowerShell if wanted.

    Enable or Disable Reserved Storage in Windows 10-set-windowsreservedstoragestate_enabled.png Enable or Disable Reserved Storage in Windows 10-set-windowsreservedstoragestate_disabled.png






    OPTION FIVE

    Enable Reserved Storage using a REG file


    This is the default setting,

    The downloadable .reg files below will modify the DWORD values in the registry key below.

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ReserveManager]
    "MiscPolicyInfo"=dword:00000001
    "PassedPolicy"=dword:00000001
    "ShippedWithReserves"=dword:00000001


    1 Click/tap on the Download button below to download the file below.

    Enable_Reserved_Storage.reg

    Download

    2 Save the .reg file to your desktop.

    3 Double click/tap on the downloaded .reg file to merge it.

    4 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

    5 You can now delete the downloaded .reg file if you like.

    6 Your changes will take affect the next time Windows 10 is updated to a new build.






    OPTION SIX

    Disable Reserved Storage using a REG file


    The downloadable .reg files below will modify the DWORD values in the registry key below.

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ReserveManager]
    "MiscPolicyInfo"=dword:00000002
    "PassedPolicy"=dword:00000000
    "ShippedWithReserves"=dword:00000000


    1 Click/tap on the Download button below to download the file below.

    Disable_Reserved_Storage.reg

    Download

    2 Save the .reg file to your desktop.

    3 Double click/tap on the downloaded .reg file to merge it.

    4 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

    5 You can now delete the downloaded .reg file if you like.

    6 Open Settings, click/tap on Apps & features on the left side, and click/tap on the Optional features link on the right side. (see screenshots below)

    This will refresh reserved storage to free it up and be available again on the Windows C:\ drive.

    Enable or Disable Reserved Storage in Windows 10-optional_features-1.jpg Enable or Disable Reserved Storage in Windows 10-optional_features-2.png

    7 You can now close Optional features. If you check Reserved Storage size, it should no longer be reserved like below. (see screenshot below)

    Enable or Disable Reserved Storage in Windows 10-reserved_storage_disabled.png


    That's it,
    Shawn



  1. f14tomcat's Avatar
    Posts : 47,375
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       #1

    I had enabled it on both Fast and Skippy builds, and just noticed today after build 18323 these tidbits.

    An 8GB VHDX (Virtual Hard Drive) allocated consuming almost no space. Just ID data.

    How it appears in Defrag and Optimize:

    Enable or Disable Reserved Storage in Windows 10-2019-01-25_08h57_07.png

    How it appears in Disk Management and MiniTool Partition Wizard:

    Enable or Disable Reserved Storage in Windows 10-2019-01-25_08h58_42.pngEnable or Disable Reserved Storage in Windows 10-2019-01-25_08h02_59.png
      My Computers

  2. Brink's Avatar
    Posts : 48,770
    64-bit Windows 10 Pro for Workstations build 19635
    Thread Starter
       #2

    Interesting. I was wondering how this was going to be implemented.
      My Computers

  3. Fabler2's Avatar
    Posts : 1,386
    Windows 10 preview 64-bit Pro
       #3

    Not showing for me on build 18323 although have 7.96 reserved storage.


    Enable or Disable Reserved Storage in Windows 10-image.png
      My Computers

  4. f14tomcat's Avatar
    Posts : 47,375
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       #4

    Fabler2 said:
    Not showing for me on build 18323 although have 7.96 reserved storage.


    Enable or Disable Reserved Storage in Windows 10-image.png
    Does it show in the Optimize and Defrag display? Or Disk Management?
      My Computers

  5. Fabler2's Avatar
    Posts : 1,386
    Windows 10 preview 64-bit Pro
       #5

    f14tomcat said:
    Does it show in the Optimize and Defrag display? Or Disk Management?
    No, doesn't show up on either,
    Enable or Disable Reserved Storage in Windows 10-image.png

    Enable or Disable Reserved Storage in Windows 10-image.png
      My Computers

  6. f14tomcat's Avatar
    Posts : 47,375
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       #6

    Then next question would be what indicates to you that you have the 8GB reserved? Check this Reg key (from Shawn's tut above)

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ReserveManager

    ShippedWithReserves DWORD

    0 = Disable (default)
    1 = Enable



    If you just did this, in this build, it will will not appear until the next build update.
      My Computers


  7. Fabler2's Avatar
    Posts : 1,386
    Windows 10 preview 64-bit Pro
       #7

    Did this in the build before last,

    Enable or Disable Reserved Storage in Windows 10-image.png

    Enable or Disable Reserved Storage in Windows 10-image.png
      My Computers

  8. f14tomcat's Avatar
    Posts : 47,375
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       #8

    Then.....I'm stumped. Maybe cause you have very little empty space? Don't really know.
      My Computers

  9. Fabler2's Avatar
    Posts : 1,386
    Windows 10 preview 64-bit Pro
       #9

    Loads of free space but it could be the MBR/BIOS partition limitations? Just a guess. Will try and tidy up those two recovery partitions. Macrium backup first though!
    Last edited by Fabler2; 26 Jan 2019 at 07:58. Reason: added info
      My Computers


 
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