Applies to:

Windows 7 Service Pack 1
Windows 7 SP1
Win7 Service Pack 1
Win7 SP1

Note: You should check http://support.microsoft.com for the latest version of the different files.

Ben Christenbury, Roger Southgate and other fellow PFE’s and the Supportability Program Managers (SPM’s) created this list to optimize your Windows 7 SP1 experience.  Enjoy.

List of Performance related hotfixes post SP1 for Windows 7 SP1 as of Mar. 2013 (Q1 2013):

Originally published Feb. of 2012,updated May 2012, Jun. 2012, Sep. 2012, Mar. 2013.

2775511 An enterprise hotfix rollup is available for Windows 7 SP1 and Windows Server 2008 R2 SP1

http://support.microsoft.com/kb/2775511

2481614              Windows 7 may connect to a guest network instead of a corporate network

http://support.microsoft.com/kb/2481614
Update(s):
Dot3gpclnt.dll

2492806 - A Windows Vista-based, Windows Server 2008-based, and Windows 7-based or Windows Server 2008 R2-based computer that shares some files and some folders may not respond to file share requests

http://support.microsoft.com/?id=2492806
Update(s):
Srv.sys 6.1.7601.21657
Srv2.sys 6.1.7601.21657

2505438 - Slow performances in applications that use the DirectWrite API on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2505438
Update(s):
D2d1.dll 6.1.7601.17563
Fntcache.dll 6.1.7601.17563
Dwrite.dll 6.1.7601.17563
D2d1.dll 6.1.7601.21664
Fntcache.dll 6.1.7601.21664
Dwrite.dll 6.1.7601.21664

2505454 - The startup process is delayed on a computer that has a large hard disk installed and is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2505454
Update(s):
Volsnap.sys 6.1.7601.17567
Volsnap.sys 6.1.7601.21668

2510636 - An update that improves the startup performance of Windows 7 and of Windows Server 2008 R2 is available

http://support.microsoft.com/?id=2510636
Update(s):
Svchost.exe 6.1.7601.17568
Svchost.exe 6.1.7601.21671

Article ID: 2523887 - You may encounter file corruption issues when you use the Offline Files feature to synchronize data in Windows 7 
 
http://support.microsoft.com/?id=2523887
Update(s):
Cscsvc.dll 6.1.7601.21731
Supersede(s):   
2466438 An error message is logged in Sync Center when the offline synchronization for a user’s home folder fails in Windows 7 or in Windows Server 2008 R2: "Object name not found"

2524478 - The network location profile changes from "Domain" to "Public" in Windows 7 or in Windows Server 2008 R2. This problem can affect Group Policy processing at boot time because NLA does not know what network profile to use.

http://support.microsoft.com/kb/2524478
Update(s):
Network Location Service

2525332 - You encounter a long logon time after you enable the "Do not automatically make redirected folders available offline" Group Policy setting in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2525332
Update(s):
Shell32.dll 6.1.7601.21687

2537556              When you use a GPO for application deployment in Windows 7 or in Windows Server 2008 R2, the deployment fails or is delayed

http://support.microsoft.com/kb/2537556
Update(s):
Appmgmts.dll – 6.1.7601.21704 (LDR)

2547244 - The WMI service and the WMI providers stop responding when you use WMI performance classes to monitor performance on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2547244
Update(s):
Wmiperfclass.dll 6.1.7601.21731
Wmiperfclass.mof
Wmiperfinst.mof

2555428 - The Windows 7 startup process is slow when you create many restore points

http://support.microsoft.com/?id=2555428
Update(s):
Rdyboost.sys 6.1.7601.17620
Sysmain.dll 6.1.7601.17620
Rdyboost.sys 6.1.7601.21732
Sysmain.dll 6.1.7601.21732

2561285 - You experience a long domain logon time in Windows 7 or in Windows Server 2008 R2 after you deploy Group Policy preferences to the computer

http://support.microsoft.com/?id=2561285
Update(s):
Gpprefcl.dll 6.1.7601.21771

2561708 - Offline files synchronization may not finish on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2561708
Update(s):
Csc.sys 6.1.7601.21772
Cscmig.dll 6.1.7601.17514

2580119 - The operating system cannot establish a secure channel after a failed deployment of Windows 7 or Windows Server 2008 R2 on client computers

http://support.microsoft.com/?id=2580119
Update(s):
Netlogon.dll 6.1.7601.21772

2581608 - Logon scripts take a long time to run in Windows Vista, in Windows Server 2008, in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2581608
Update(s):
Gpsvc.dll 6.1.7601.21830
Gpapi.dll 6.1.7601.21830

2582112 - Windows 7 or Windows Server 2008 R2 stops responding when an application performs many I/O operations to a network share

http://support.microsoft.com/?id=2582112
Update(s):
Umpo.dll 6.1.7601.21778

2610379 - The Folder Redirection policy does not work if a previous user sets a redirected folder to an offline mode in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2610379
Update(s):
All new Client Side Caching

2613988              Changes to performance counters are not updated for at least 15 minutes when you use WMI to query performance counter values in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2613988
Update(s):
Wmiperfclass.dll

2617858 - Unexpectedly slow startup or logon process in Windows Server 2008 R2 or in Windows 7

http://support.microsoft.com/?id=2617858
Update(s):
Repdrvfs.dll 6.1.7601.21824

2625434 - "ERROR_SHARING_VIOLATION" error message in Windows XP or in Windows Server 2003 when you try to open a file on an SMB share on a server that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2625434
Update(s):
Srv.sys 6.1.7601.21864

2640148 - Windows Explorer stops responding if you try to expand a mapped drive in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2640148
Update(s):   
Ntshrui.dll    6.1.7601.17718   
Ntshrui.dll    6.1.7601.21853   

2645611 - Windows 7 or Windows Server 2008 R2 stops responding if you try to log on a computer that has multiple monitors

http://support.microsoft.com/?id=2645611
Update(s):
Win32k.sys 6.1.7601.21869

2655998 Long logon time when you establish an RD session to a Windows Server 2008 R2-based RD Session Host server if Printer Redirection is enabled

http://support.microsoft.com/?id=2655998 
Update(s):
Umrdp.dll

2661001 "Please wait for Local Session Manager" message remains for several minutes when you disconnect from a computer that is running Windows Server 2008 R2 during the logon process

http://support.microsoft.com/?id=2661001
Update(s):
Rpcss.dll

2673042 You experience a long startup time or a long logon time when domain controllers are unavailable on a Windows 7-based or Windows Server 2008 R2-based domain member computer

http://support.microsoft.com/?id=2673042
Update(s):
Gpsvc.dll

2675785 Slow data transfer speed in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2675785
Update(s):
Fwpkclnt.sys
Tcpip.sys

2682011              Server Manager in Windows Server 2012 does not retrieve performance data for computers that are running Windows Server 2008 or Windows Server 2008 R2

http://support.microsoft.com/kb/2682011
Update(s):
Advapi32.dll

2689311 SMB commands run serially when the SMB packet signing feature is enabled in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2689311
Update(s):
Mrxsmb.sys 6.1.7601.17796

2685893 Error messages after you change the 2047 character limit in an environment variable on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2685893
Update(s):
Shell32.dll
Sysdm.cpl

2698279 Settings that are driven by a Netlogon GPO do not work as expected in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2698279
Update(s):
Netlogon.dll

2693010 Long logon time on a Windows 7-based or Windows Server 2008 R2-based client computer in a domain that uses Group Policy preferences to manage drive mappings

http://support.microsoft.com/?id=2693010
Update(s):
Gpprefcl.dll

2703610 "The file or folder does not exist" when renaming or saving to DFS share from a Windows 7 computer

http://support.microsoft.com/?id=2703610
Update(s):
Mrxsmb20.sys

2751389 Logon or logoff process is slow on a computer that is running Windows 7 SP1 or Windows Server 2008 R2 SP1 in a WAN environment

http://support.microsoft.com/?id=2751389

Update(s):
Profsvc.dll 6.1.7601.22106

Supersede( s):
2709630 Delay occurs when you log on to a domain from a computer that is running Windows 7 or Windows Server 2008 R2

2715922 Home folder is not mapped to a client computer when multiple users are logged on to a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2715922
Update(s):
Rdbss.sys

2714030              A new file that has the same file name as a ghost file can be created without displaying a prompt on a Windows 7-based or Windows Server 2008 R2-based client computer

http://support.microsoft.com/?id=2714030
Update(s):
csc.sys
cscapi.dll
cscdll.dll
cscmig.dll
cscsvc.dll

2727324 Computer stops responding after you connect to an SMB version 1 server in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2727324
Update(s):
Mrxsmb10.sys

2725279 Autologon feature repeatedly tries to log on a user after the user's password changes on another computer in Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2725279
Update(s):
Authui.dll
Authui.ptxml

2728738 You experience a long logon time when you try to log on to a Windows 7-based or a Windows Server 2008 R2-based client computer that uses roaming profiles

http://support.microsoft.com/?id=2728738
Update(s):
Profprov.dll
Profsvc.dll
Profsvc.ptxml
Userprofilewmiprovider.mof

2725279 Autologon feature repeatedly tries to log on a user after the user's password changes on another computer in Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2725279
Update(s):
Authui.dll

2727324 Computer stops responding after you connect to an SMB version 1 server in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2727324
Update(s):
Mrxsmb10.sys

2732618 High CPU usage on a file server that is running Windows 7 or Windows Server 2008 R2 with ABE enabled

http://support.microsoft.com/?id=2732618
Update(s):
Srv2.sys

2736878   802.1X authentication fails after you connect a computer to a network in Windows 7 SP1 or Windows Server 2008 R2 SP1

http://support.microsoft.com/?id=2736878
Update(s):
Dot3svc.dll

2738141   DhcpRequestParams function does not retrieve configuration settings from a DHCP server in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2738141
Update(s):
Dhcpcore.dll

2739674   You cannot connect to remote computers by using the SMB protocol on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2739674
Update(s):
Mrxsmb.sys
Mrxsmb20.sys

2743978   "13808" error code when a VPN connection intermittently fails on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/?id=2743978
Update(s):
Bfe.dll
Fwpuclnt
Ikeext.dll
Nshwfp.dll

2750841   An IPv6 readiness update is available for Windows 7 and for Windows Server 2008 R2

http://support.microsoft.com/?id=2750841
Update(s):
Ncsi.dll
Nlaapi.dll
Nlasvc.dll
Tcpip.sys

2751389   Logon or logoff process is slow on a computer that is running Windows 7 SP1 or Windows Server 2008 R2 SP1 in a WAN environment

http://support.microsoft.com/?id=2751389
Update(s):
Profprov.dll
Profsvc.dll

2755105   WLAN AutoConfig service cannot identify which networks are available and connects to a network randomly on a computer that is running Windows 7 SP1 or Windows Server 2008 R2 SP1

http://support.microsoft.com/?id=2755105
Update(s):
Wlansm.dll

 

Other hotfixes that might be useful:

========================

2537549              Cannot deploy a printer by using a GPO if read-only domain controllers are exclusively used in the domain environment in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2537549

Gpprnext.dll – 6.1.7601.21730 (LDR)

2541014              Hibernation does not work or memory dump file is not created after you install Windows 7 or Windows Server 2008 R2 Service Pack 1

http://support.microsoft.com/kb/2541014

Diskdump.sys – 6.1.7601.17601/21710 (GDR/LDR)

2579274              "0x0000007E" Stop error message when a connection is reset on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2579274

Afd.sys – 6.1.7601.21792 (LDR)

2590550              The desktop does not load and only displays a black or blue background after you log on to a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2590550

Mountmgr.sys – 6.1.7601.21810 (LDR)

2614892                A computer stops responding because of a deadlock situation in the Mountmgr.sys driver in running Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2614892

Advapi32.dll/Sechost.dll – 6.1.7601.17690/21817 (GDR/LDR)

2616386              Windows Explorer displays wrong access control entries for migrated user accounts in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2616386

Srv.sys – 6.1.7601.21864 (LDR)

2625434              "ERROR_SHARING_VIOLATION" error message in Windows XP or in Windows Server 2003 when you try to open a file on an SMB share on a server that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2625434

Umpo.dll – 6.1.7601.21853 (LDR)

2639077              Handle leak in Svchost.exe when a WMI query is triggered by using the Win32_PowerSettingCapabilities class in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2639077

Dfsc.sys – 6.1.7601.21864 (LDR)

2647452              Paged pool leaks when you map a network drive and then disconnect it frequently in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2647452

Csc.sys/cscapi.dll/cscdll.dll/cscmig.dll/cscobj.dll – 6.1.7601.22085 (LDR)

2714014                Folder Redirection feature does not synchronize a file in a redirected folder on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2714014

Rdbss.sys – 6.1.7601.22009 (LDR)

2715922              Home folder is not mapped to a client computer when multiple users are logged on to a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2715922

Srvsvc.dll – 6.1.7601.21792 (LDR)

2723248 Wrong user name is displayed in the Folder In Use dialog box when you try to open an Excel worksheet in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2723248

Mrxdav.sys – 6.1.7601.22046 (LDR)

2727941 "0x00000050" Stop error when you create a volume snapshot in Windows Vista, in Windows Server 2008, in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2727941

Volsnap.sys – 6.1.7601.22054 (LDR)

2727994 You cannot open or save Office 2010 documents on a WebDAV file server on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2727994

Davclnt.dll – 6.1.7601.22046 (LDR)

2732471 Data becomes corrupted when a storage miniport driver tries to copy data to RAM in Windows 7 and in Windows Server 2008 R2

http://support.microsoft.com/kb/2732471

Storport.sys – 6.1.7601.17956/22114 (GDR/LDR)

2732597 0x80070091 error when you drag and drop a folder in a WebDAV shared folder in Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2732597

Webclnt.dll – 6.1.7601.22083 (LDR)

2735697 Computer crashes when you connect to a Citrix XenDesktop virtual machine in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2735697

Win32k.sys – 6.1.7601.17921/22078 (GDR/LDR)

2748302 Stop error when you use a Citrix XenApp application in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2748302

Ntkrnlpa.exe/Ntoskrnl.exe – 6.1.7601.17946/22105 (GDR/LDR)

2751383 All external drive devices are set to read-only unexpectedly after you set an embedded CD or DVD device to read-only in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/kb/2751383

Shell32.dll – 6.1.7601.22103 (LDR)

2756999 Handle leak occurs on a COM client that is running on a Windows 7 or Windows Server 2008 R2 computer

http://support.microsoft.com/kb/2756999

Rpcss.dll – 6.1.7601.22118 (LDR)

2761645 Access Denied error message when a user tries to access a redirected folder share or a home drive share on a computer that is running Windows 7 or Windows Server 2008 R2

http://support.microsoft.com/kb/2761645

Cscsvc.dll – 6.1.7601.22131 (LDR)

2764302 "0x0000001E" Stop error occurs intermittently in Windows 7 SP1 and Windows Server 2008 R2 SP1

http://support.microsoft.com/kb/2764302

Ntfs.sys – 6.1.7601.22123 (LDR)