MinDiffAreaFileSize registry value limit is increased from 3 GB to 50 GB in Windows 8.1 or Windows Server 2012 R2

This article describes an update that increases the MinDiffAreaFileSizeregistry key value limit from 3 GB to 50 GB in Windows 8.1 or Windows Server 2012 R2. Before you install this update, see the Prerequisites section.

Symptoms

You may encounter an Event ID: 25 error because of heavy I/O. 

Event Type: Error
Event Source: VolSnap
Event Category: None
Event ID: 25
Description: The shadow copies of volume Volume_Name were aborted because the diff area file could not grow in time. Consider reducing the IO load on this system to avoid this problem in the future.

Resolution

To fix this issue, install the update and then set the MinDiffAreaFileSize registry key to an appropriate size depending on the I/O amount.

How to get this update

Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Update detail information

Prerequisites

To install this update, you should first install April 2014, update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) in Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

Learn about the terminology that Microsoft uses to describe software updates.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.3.960 0.18 xxx

    Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

    RTM

    GDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Volsnap.sys

6.3.9600.18265

244,584

14-Mar-2016

17:01

Not applicable

x86 Windows 8.1

File name

File version

File size

Date

Time

Platform

Volsnap.sys

6.3.9600.18265

265,048

14-Mar-2016

16:55

x86

x64 Windows 8.1 and Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Volsnap.sys

6.3.9600.18265

316,760

14-Mar-2016

16:50

x64


Windows RT 8.1

File property

Value

File name

Arm_volume.inf_31bf3856ad364e35_6.3.9600.18266_none_aa705f561799dfb8.manifest

File version

Not applicable

File size

2,103

Date (UTC)

14-Mar-2016

Time (UTC)

17:10

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,585

Date (UTC)

14-Mar-2016

Time (UTC)

17:10

Platform

Not applicable

x86 Windows 8.1

File property

Value

File name

Update.mum

File version

Not applicable

File size

1,585

Date (UTC)

14-Mar-2016

Time (UTC)

17:10

Platform

Not applicable

File name

X86_volume.inf_31bf3856ad364e35_6.3.9600.18266_none_aa6decfe179cc0f2.manifest

File version

Not applicable

File size

2,103

Date (UTC)

14-Mar-2016

Time (UTC)

17:14

Platform

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File property

Value

File name

Amd64_volume.inf_31bf3856ad364e35_6.3.9600.18266_none_068c8881cffa3228.manifest

File version

Not applicable

File size

2,107

Date (UTC)

14-Mar-2016

Time (UTC)

17:18

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,593

Date (UTC)

14-Mar-2016

Time (UTC)

17:10

Platform

Not applicable


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