Windows RT, Windows 8, and Windows Server 2012 update rollup: April 2014

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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

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More Information

Update information

How to obtain the update

Windows Update

This update will be available from Windows Update.

Notes

This update is provided as an important update.
If you select the Install updates automatically (recommended) Windows Update setting, this update is installed automatically.
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.

File information

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.

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

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