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Delete Reserved Storage on Windows 10 19H1 (1903)


Badruzeus
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Microsoft introduced new feature on Windows 10 19H1 (1903) named "Reserved Storage" that is enabled by default.

As they've stated:

 

Quote

Reserving disk space to keep Windows 10 up to date

Starting with the next major update we’re 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. Our 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 don’t need to set anything up—this process will automatically run in the background. The rest of this blog post will share additional details on how reserved storage can help optimize your device.

 

Though this is useful feature according to Microsoft, but consider about one thing: "Disk Space". This one is different with "Microsoft Reserved Partition" (MSR), on my case it took more than 7GB on Windows partition. Also different with `DISM.exe /online /Cleanup-Image /StartComponentCleanup /ResetBase`.

 

storage-reserve-cli0.png

 

Yeah, you could get big Storage with cheap price nowadays.

But on some conditions, when you get "Low Disk" and want to disable this feature.. here's how:

 

1. Run Registry Editor: Win+R, type: `regedit`

2. Navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ReserveManager

3. Select "ReserveManager" - Right Click - Choose "Export". Save it on your local disk for "Safety".

You probably need it when error occurred

 

4. Now change to these values:

BaseHardReserveSize		: 0
BaseSoftReserveSize		: 0
HardReserveAdjustment		: 1
MinDiskSize			: 0
PassedPolicy			: 0
ShippedWithReserves		: 0
TiAttemptedInitialization	: 0

// Alternatively, double click "ReservedStorage-Disable-W10-19H1.reg" from attachment

ReservedStorage-Disable-W10-19H1.reg.zip

 

5. Restart Windows. Once you reach Desktop, you'll get more Free Space on System Partition.

It maybe need a moment to populate Disk Space at the 1st time, check Windows Explorer.

 

ReservedStorage-Disable-Win10.png

Edited by Badruzeus
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