How to turn off reserved storage in Windows 10 19H1

Matthew Adams By: Matthew Adams
2 minute read
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Microsoft released many new Windows 10 builds in January that provides a further glimpse of what spring’s 19H1 update has in store for the platform. Reserved storage (otherwise Storage Reserve) is one of the new things that preview build showcases to Windows Insider users. The reserved storage holds back a certain amount of hard drive storage to ensure there’s enough HDD space for Windows 10 updates.

The new reserved storage consists of reallocated temporary files. Those temporary OS files will then be erased when Windows 10 needs the storage space for its updates. The current default value for reserved storage is about seven gigabytes.

The amount of reserved storage primarily depends on pre-installed optional features. As such, users can configure the amount of reserved storage by removing optional features. To do that, enter the keyword ‘optional’ in Cortana’s search box. Then users can click Manage optional features to open the window shown directly below from which they can uninstall optional features.

However, removing optional features, such as Windows Media Player, is not an ideal way to configure the reserved storage amount. So some users might prefer to turn off reserved storage to ensure they can retain seven gigabytes for their own files and software. Windows Insiders can turn off reserved storage as follows.

  • Open the Registry Editor within an admin account. To do that, press the Windows key + R hotkey.
  • Then enter ‘regedit’ in Run, and press the OK button.

  • Then click HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > CurrentVersion > ReserveManager on the left of the Registry Editor window.
  • Then users can double-click the ShippedWithReserves DWORD to open its Edit DWORD window.
  • Adjust the value in the Value data box to 0.
  • Click OK to close the Edit DWORD window.
  • Then close the Registry Editor window.

Note, however, that Windows Insiders need to enable reserved storage by adjusting the ShippedWithReserves DWORD value to 1. Thus, Windows Insider users don’t need to turn off reserved storage unless they’ve already enabled it.

Nevertheless, reserved storage will be enabled by default in Windows 10 version 1903 that Microsoft will release in spring 2019.

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