Summary

This article describes the update rollup for Windows RT, Windows 8, and Windows Server 2012 that is dated April 2014. This update rollup package includes performance and reliability improvements. We recommend that you apply this update rollup as part of your regular maintenance routines.

Issues that this update fixes

This update package fixes the issues that are documented in the following Microsoft Knowledge Base (KB) articles:

  • 2937633 Low throughput when copying files over SMB to a scale-out file server backed by Storage Spaces in Windows 8 or Windows Server 2012

  • 2935616 High memory usage by the Wmiprvse.exe process in a Windows Server 2012 cluster

  • 2934897 Backup application process crashes in Windows Server 2012 R2 or Windows Server 2012

  • 2934123 USB selective suspend feature is disabled unexpectedly in Windows

  • 2931129 "0x0000007E" Stop error on IPMIDrv!KCSRequestResponseEngine in Windows Server

  • 2936943 Registry.pol is corrupted after an abnormal termination during the writing process in Windows Server 2012 and Windows Server 2008 R2 SP1

  • 2938013 Event ID 307 does not show the printed document name in Windows

  • 2911204 Stop error 0x9F in the mf.sys driver occurs in Windows

  • 2934249 NFS version 4.1 and version 3 work unexpectedly in Windows Server 2012 R2 or Windows Server 2012

More Information

Update information

How to obtain the update

Windows Update

This update will be available from Windows Update.

Notes

  1. This update is provided as an important update.

  2. If you select the Install updates automatically (recommended) Windows Update setting, this update is installed automatically.

  3. If you select other Windows Update settings, we highly recommend that you install this update through Windows Update immediately.

Microsoft Download Center


You can also obtain the stand-alone update package through the Microsoft Download Center. For more information, go to the Microsoft Download Center, and then search for KB2934016.

Prerequisites

To apply this update, you must be running Windows RT, Windows 8, or Windows Server 2012.

Restart information

You must restart the computer after you apply this update.

Update replacement information

This update does not replace any previously released update.

The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows RT, Windows 8, and Windows Server 2012 file information 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

    6.2.920 0.16 xxx

    Windows RT, Windows 8, and Windows Server 2012

    RTM

    GDR

    6.2.920 0.20 xxx

    Windows RT, Windows 8, and Windows Server 2012

    RTM

    LDR

  • 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 not listed.

For Windows RT

File name

File version

File size

Date

Time

Platform

Hidi2c.sys

6.2.9200.16461

31,232

20-Nov-2012

04:10

Not applicable

Hidclass.sys

6.2.9200.16769

60,416

25-Nov-2013

23:14

Not applicable

Hidparse.sys

6.2.9200.16654

27,136

29-Jun-2013

02:16

Not applicable

Hidusb.sys

6.2.9200.16461

20,992

20-Nov-2012

04:11

Not applicable

Ipmidrv.sys

6.2.9200.16848

63,488

15-Feb-2014

03:57

Not applicable

Mf.sys

6.2.9200.16817

129,536

08-Feb-2014

03:41

Not applicable

Gpedit.dll

6.2.9200.16859

1,015,808

01-Mar-2014

07:20

Not applicable

Kernel32.dll

6.2.9200.16859

922,112

01-Mar-2014

07:20

Not applicable

Kernelbase.dll

6.2.9200.16857

629,248

26-Feb-2014

23:27

Not applicable

Mrxsmb20.sys

6.2.9200.16857

148,992

26-Feb-2014

23:16

Not applicable

Mrxsmb.sys

6.2.9200.16857

261,632

26-Feb-2014

23:16

Not applicable

Srvnet.sys

6.2.9200.16857

166,400

26-Feb-2014

23:16

Not applicable

Srv2.sys

6.2.9200.16857

455,680

26-Feb-2014

23:16

Not applicable

For all supported x86-based versions of Windows 8

File name

File version

File size

Date

Time

Platform

Hidi2c.sys

6.2.9200.16461

30,208

20-Nov-2012

04:56

x86

Hidi2c.sys

6.2.9200.20623

30,208

02-Feb-2013

05:59

x86

Hidclass.sys

6.2.9200.16769

61,440

25-Nov-2013

23:17

x86

Hidparse.sys

6.2.9200.16654

26,496

29-Jun-2013

02:32

Not applicable

Hidusb.sys

6.2.9200.16604

19,456

04-May-2013

04:08

x86

Hidclass.sys

6.2.9200.20886

61,440

25-Nov-2013

23:17

x86

Hidparse.sys

6.2.9200.20763

26,496

02-Jul-2013

02:52

Not applicable

Hidusb.sys

6.2.9200.16384

19,456

26-Jul-2012

02:36

x86

Ipmidrv.sys

6.2.9200.16848

65,536

15-Feb-2014

04:04

x86

Ipmidrv.sys

6.2.9200.20968

65,536

15-Feb-2014

04:06

x86

Mf.sys

6.2.9200.16817

127,488

08-Feb-2014

04:10

x86

Mf.sys

6.2.9200.20937

127,488

08-Feb-2014

04:07

x86

Gpedit.dll

6.2.9200.16859

1,075,200

01-Mar-2014

08:07

x86

Gpedit.dll

6.2.9200.20978

1,075,200

01-Mar-2014

08:04

x86

Kernel32.dll

6.2.9200.16859

1,011,712

01-Mar-2014

08:07

x86

Kernel32.dll

6.2.9200.20978

1,011,712

01-Mar-2014

08:04

x86

Kernelbase.dll

6.2.9200.16857

755,712

26-Feb-2014

23:38

x86

Kernelbase.dll

6.2.9200.20976

756,224

26-Feb-2014

23:41

x86

Mrxsmb20.sys

6.2.9200.16857

166,400

26-Feb-2014

23:19

x86

Mrxsmb20.sys

6.2.9200.20976

167,424

26-Feb-2014

23:22

x86

Mrxsmb.sys

6.2.9200.16857

304,128

26-Feb-2014

23:19

x86

Mrxsmb.sys

6.2.9200.20976

305,152

26-Feb-2014

23:22

x86

Srvnet.sys

6.2.9200.16857

196,096

26-Feb-2014

23:18

x86

Srvnet.sys

6.2.9200.20976

195,584

26-Feb-2014

23:21

x86

Srv2.sys

6.2.9200.16857

495,104

26-Feb-2014

23:19

x86

Srv2.sys

6.2.9200.20976

495,616

26-Feb-2014

23:22

x86

For all supported x64-based versions of Windows 8 and of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Hidi2c.sys

6.2.9200.16461

39,936

20-Nov-2012

04:54

x64

Hidi2c.sys

6.2.9200.20623

39,936

02-Feb-2013

06:01

x64

Hidclass.sys

6.2.9200.16769

83,968

25-Nov-2013

23:17

x64

Hidparse.sys

6.2.9200.16654

32,768

29-Jun-2013

03:08

x64

Hidusb.sys

6.2.9200.16604

27,648

04-May-2013

04:48

x64

Hidclass.sys

6.2.9200.20886

83,968

25-Nov-2013

23:16

x64

Hidparse.sys

6.2.9200.20763

32,768

02-Jul-2013

09:25

x64

Hidusb.sys

6.2.9200.16384

27,648

26-Jul-2012

02:28

x64

Ipmidrv.sys

6.2.9200.16848

78,336

15-Feb-2014

04:15

x64

Ipmidrv.sys

6.2.9200.20968

78,336

15-Feb-2014

04:34

x64

Mf.sys

6.2.9200.16817

158,720

08-Feb-2014

04:35

x64

Mf.sys

6.2.9200.20937

158,720

08-Feb-2014

04:24

x64

Cluswmi.dll

6.2.9200.16851

2,052,096

19-Feb-2014

23:28

x64

Cluswmi.mof

Not applicable

94,872

25-Jul-2012

20:13

Not applicable

Cluswmiuninstall.mof

Not applicable

409

02-Jun-2012

14:35

Not applicable

Failovercluster-cluswmi-ppdlic.xrm-ms

Not applicable

2,920

20-Feb-2014

02:31

Not applicable

Cluswmi.dll

6.2.9200.20971

2,052,096

19-Feb-2014

23:27

x64

Cluswmi.mof

Not applicable

94,872

25-Jul-2012

20:13

Not applicable

Cluswmiuninstall.mof

Not applicable

409

02-Jun-2012

14:35

Not applicable

Failovercluster-cluswmi-ppdlic.xrm-ms

Not applicable

2,920

20-Feb-2014

01:50

Not applicable

Gpedit.dll

6.2.9200.16859

1,120,768

01-Mar-2014

09:47

x64

Gpedit.dll

6.2.9200.20978

1,120,768

01-Mar-2014

08:15

x64

Kernel32.dll

6.2.9200.16859

1,258,496

01-Mar-2014

09:47

x64

Kernel32.dll

6.2.9200.20978

1,258,496

01-Mar-2014

08:15

x64

Kernelbase.dll

6.2.9200.16857

982,016

26-Feb-2014

23:40

x64

Kernelbase.dll

6.2.9200.20976

979,968

26-Feb-2014

23:37

x64

Msnfsflt.mof

Not applicable

4,460

06-Jul-2012

20:34

Not applicable

Msnfsflt.sys

6.2.9200.16453

32,256

08-Nov-2012

04:00

x64

Nfs-servercore-ppdlic.xrm-ms

Not applicable

2,893

15-Feb-2014

07:34

Not applicable

Nfssvc.exe

6.2.9200.16453

67,584

08-Nov-2012

04:22

x64

Nfssvr.mof

Not applicable

6,233

06-Jul-2012

20:34

Not applicable

Nfssvr.sys

6.2.9200.16848

1,249,792

15-Feb-2014

04:11

x64

Msnfsflt.mof

Not applicable

4,460

02-Jun-2012

14:44

Not applicable

Msnfsflt.sys

6.2.9200.16384

32,256

26-Jul-2012

02:29

x64

Nfs-servercore-ppdlic.xrm-ms

Not applicable

2,893

15-Feb-2014

05:41

Not applicable

Nfssvc.exe

6.2.9200.16384

67,584

26-Jul-2012

03:08

x64

Nfssvr.mof

Not applicable

6,233

02-Jun-2012

14:44

Not applicable

Nfssvr.sys

6.2.9200.20968

1,249,792

15-Feb-2014

04:31

x64

Mrxsmb20.sys

6.2.9200.16857

215,040

26-Feb-2014

23:18

x64

Mrxsmb20.sys

6.2.9200.20976

214,016

26-Feb-2014

23:20

x64

Smbdirect.sys

6.2.9200.16857

131,072

26-Feb-2014

23:18

x64

Smbdirect.sys

6.2.9200.20976

131,072

26-Feb-2014

23:20

x64

Mrxsmb.sys

6.2.9200.16857

370,688

26-Feb-2014

23:18

x64

Mrxsmb.sys

6.2.9200.20976

362,496

26-Feb-2014

23:21

x64

Srvnet.sys

6.2.9200.16857

247,808

26-Feb-2014

23:18

x64

Srvnet.sys

6.2.9200.20976

247,808

26-Feb-2014

23:20

x64

Srv2.sys

6.2.9200.16857

621,568

26-Feb-2014

23:18

x64

Srv2.sys

6.2.9200.20976

618,496

26-Feb-2014

23:21

x64

Kernel32.dll

6.2.9200.16859

974,848

01-Mar-2014

06:59

x86

Kernel32.dll

6.2.9200.20978

974,848

01-Mar-2014

07:02

x86

Kernelbase.dll

6.2.9200.16857

668,160

26-Feb-2014

23:21

x86

Kernelbase.dll

6.2.9200.20976

668,160

26-Feb-2014

23:23

x86

Gpedit.dll

6.2.9200.16859

1,075,200

01-Mar-2014

08:07

x86

Gpedit.dll

6.2.9200.20978

1,075,200

01-Mar-2014

08:04

x86


References

For more information about Windows Update, go to the following Microsoft websites:

Troubleshoot problems with installing updates

Frequently asked questions about Windows automatic updatesFor more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

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