Symptoms
Consider the following scenario:
- You have a computer that is running an x64-based version of Windows 7 or Windows Server 2008 R2.
- You run some x86-based applications or services on the computer.
- You install updates through Windows update without first stopping the x86-based applications or services. These updates may include Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 Service Pack 1 (SP1).
In this scenario, an error may occur in the x86-based applications or services, which causes the application or service to stop unexpectedly. This behavior may cause data loss. Additionally, an event error message that resembles the following is logged in the application event log:
Resolution
Update information
Updates to the Windows 7 and Windows Server 2008 R2 installation software are included in this update. The installation software is the component that handles the installation and the removal of software updates, language packs, optional Windows features, and service packs. This update is necessary to successfully install and to remove any service packs to all versions of Windows 7 and on Windows Server 2008 R2.
Prerequisites
There are no prerequisites for installing this update.
Registry information
To use the update in this package, you do not have to make any changes to the registry.
Restart requirement
You must restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
Download information
The following files are available for download from the Microsoft Download Center:
Download the Update for Windows 7 for x64-based Systems (KB2487426) package now.
Download the Update for Windows Server 2008 R2 x64 Edition (KB2487426) package now.
Download the Update for Windows Server 2008 R2 for Itanium-based Systems (KB2487426) package now.
Release Date: February 8, 2011
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
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 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
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 6.1.7600.16xxx Windows 7 and Windows Server 2008 R2 RTM GDR 6.1.7600.20xxx Windows 7 and Windows Server 2008 R2 RTM LDR 6.1.7601.17xxx Windows 7 and Windows Server 2008 R2 SP1 GDR 6.1.7601.21xxx Windows 7 and Windows Server 2008 R2 SP1 LDR The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely 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.
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Winsrv.dll | 6.1.7600.16723 | 214,016 | 21-Dec-2010 | 06:16 | x64 |
| Winsrv.dll | 6.1.7600.20864 | 214,016 | 22-Dec-2010 | 07:15 | x64 |
| Winsrv.dll | 6.1.7601.17527 | 214,016 | 17-Dec-2010 | 11:42 | x64 |
| Winsrv.dll | 6.1.7601.21624 | 214,016 | 18-Dec-2010 | 08:52 | x64 |
For all supported IA-64-based versions of Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Winsrv.dll | 6.1.7600.16723 | 338,944 | 21-Dec-2010 | 05:24 | IA-64 |
| Winsrv.dll | 6.1.7600.20864 | 338,944 | 22-Dec-2010 | 06:28 | IA-64 |
| Winsrv.dll | 6.1.7601.17527 | 338,944 | 17-Dec-2010 | 06:28 | IA-64 |
| Winsrv.dll | 6.1.7601.21624 | 338,944 | 18-Dec-2010 | 09:35 | IA-64 |
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
For 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
Additional file information
Additional file information for Windows 7 and for Windows Server 2008 R2
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
| File name | Amd64_00542f1830c5d75804a873c7dd1a84f7_31bf3856ad364e35_6.1.7601.17527_none_6dde84010e54b7ef.manifest |
|---|---|
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_13a08d46847686397f7a7dd5062a708b_31bf3856ad364e35_6.1.7600.16723_none_1d2251fe5fca3cd3.manifest |
| File version | Not applicable |
| File size | 1,038 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_297854f7c06aaa192f3b109729f4b3c0_31bf3856ad364e35_6.1.7601.21624_none_98f73838748c3e6a.manifest |
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_2ffdd84497473dcd799f80e50d7d6cb8_31bf3856ad364e35_6.1.7600.16723_none_23ac67b81c945f20.manifest |
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_323d085b0a209cdcbf4d76761e60de9f_31bf3856ad364e35_6.1.7601.17527_none_ca244195df61747b.manifest |
| File version | Not applicable |
| File size | 1,038 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_4aaea486f32fb09e19e400b9b249ecd5_31bf3856ad364e35_6.1.7600.16723_none_dc144d20cd78ccfd.manifest |
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_4d834cbaaa93e3aee4cf09a53e3b3444_31bf3856ad364e35_6.1.7601.17527_none_76f0fa39faf5e218.manifest |
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_615b87b4dab56bfb19ae73f5f81c8bc1_31bf3856ad364e35_6.1.7600.20864_none_17b340bcd67d5c53.manifest |
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_7161b397d647b7e73125b8f433eb0e9a_31bf3856ad364e35_6.1.7601.21624_none_5eb4c1e1801903ee.manifest |
| File version | Not applicable |
| File size | 1,038 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_c3efaf148cd3f8e865e982679b55f7aa_31bf3856ad364e35_6.1.7601.21624_none_efdd0d86ada36771.manifest |
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_c4d2d53886f7f887b22859cb3a319205_31bf3856ad364e35_6.1.7600.20864_none_7e9f1d827808007f.manifest |
| File version | Not applicable |
| File size | 698 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_c6e8c0ca77bbf35b61806610eb8a6800_31bf3856ad364e35_6.1.7600.20864_none_e0559f79efaadaf6.manifest |
| File version | Not applicable |
| File size | 1,038 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| Platform | Not applicable |
| File name | Amd64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.16723_none_12b26ed5b5d7569a.manifest |
| File version | Not applicable |
| File size | 7,086 |
| Date (UTC) | 21-Dec-2010 |
| Time (UTC) | 07:00 |
| Platform | Not applicable |
| File name | Amd64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.20864_none_1311cc3acf147f7f.manifest |
| File version | Not applicable |
| File size | 7,086 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 08:01 |
| Platform | Not applicable |
| File name | Amd64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.17527_none_149ccd03b2fa27e2.manifest |
| File version | Not applicable |
| File size | 7,086 |
| Date (UTC) | 17-Dec-2010 |
| Time (UTC) | 12:25 |
| Platform | Not applicable |
| File name | Amd64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.21624_none_152368f0cc1a7ba7.manifest |
| File version | Not applicable |
| File size | 7,086 |
| Date (UTC) | 18-Dec-2010 |
| Time (UTC) | 09:26 |
| Platform | Not applicable |
| File name | Update-bf.mum |
| File version | Not applicable |
| File size | 3,981 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:37 |
| Platform | Not applicable |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.16723_none_1d071927ea381895.manifest |
| File version | Not applicable |
| File size | 1,300 |
| Date (UTC) | 21-Dec-2010 |
| Time (UTC) | 06:06 |
| Platform | Not applicable |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.20864_none_1d66768d0375417a.manifest |
| File version | Not applicable |
| File size | 1,300 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 06:57 |
| Platform | Not applicable |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.17527_none_1ef17755e75ae9dd.manifest |
| File version | Not applicable |
| File size | 1,300 |
| Date (UTC) | 17-Dec-2010 |
| Time (UTC) | 07:41 |
| Platform | Not applicable |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.21624_none_1f781343007b3da2.manifest |
| File version | Not applicable |
| File size | 1,300 |
| Date (UTC) | 18-Dec-2010 |
| Time (UTC) | 08:23 |
| Platform | Not applicable |
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
| File name | Ia64_00542f1830c5d75804a873c7dd1a84f7_31bf3856ad364e35_6.1.7601.17527_none_11c18c7355f54fb5.manifest |
|---|---|
| File version | Not Applicable |
| File size | 697 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_16348802efb95c0fbb4661615f07d898_31bf3856ad364e35_6.1.7601.21624_none_321d46982bf11ed4.manifest |
| File version | Not Applicable |
| File size | 696 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_297854f7c06aaa192f3b109729f4b3c0_31bf3856ad364e35_6.1.7601.21624_none_3cda40aabc2cd630.manifest |
| File version | Not Applicable |
| File size | 697 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_2ffdd84497473dcd799f80e50d7d6cb8_31bf3856ad364e35_6.1.7600.16723_none_c78f702a6434f6e6.manifest |
| File version | Not Applicable |
| File size | 697 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_382c889459e05995f5cc76ba1802fdab_31bf3856ad364e35_6.1.7600.16723_none_aa0d6498cf22bc9b.manifest |
| File version | Not Applicable |
| File size | 696 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_4580d2cd534318e3b72b307f77432c57_31bf3856ad364e35_6.1.7600.20864_none_ff0dc208091f145e.manifest |
| File version | Not Applicable |
| File size | 696 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_615b87b4dab56bfb19ae73f5f81c8bc1_31bf3856ad364e35_6.1.7600.20864_none_bb96492f1e1df419.manifest |
| File version | Not Applicable |
| File size | 697 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_ada28c942152588038ecc1ad6f39c234_31bf3856ad364e35_6.1.7601.17527_none_5e7f7bac95398c21.manifest |
| File version | Not Applicable |
| File size | 696 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Ia64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.16723_none_b6957747fd77ee60.manifest |
| File version | Not Applicable |
| File size | 7,084 |
| Date (UTC) | 21-Dec-2010 |
| Time (UTC) | 07:40 |
| File name | Ia64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.20864_none_b6f4d4ad16b51745.manifest |
| File version | Not Applicable |
| File size | 7,084 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 08:02 |
| File name | Ia64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.17527_none_b87fd575fa9abfa8.manifest |
| File version | Not Applicable |
| File size | 7,084 |
| Date (UTC) | 17-Dec-2010 |
| Time (UTC) | 08:22 |
| File name | Ia64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.21624_none_b906716313bb136d.manifest |
| File version | Not Applicable |
| File size | 7,084 |
| Date (UTC) | 18-Dec-2010 |
| Time (UTC) | 09:58 |
| File name | Package_1_for_kb2487426_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 1,786 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_1_for_kb2487426~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 3,846 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_2_for_kb2487426_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 2,002 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_2_for_kb2487426~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 4,061 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_3_for_kb2487426_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 1,981 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_3_for_kb2487426~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 3,643 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_4_for_kb2487426_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 2,197 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_4_for_kb2487426~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 3,865 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_for_kb2487426_rtm_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 1,931 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_for_kb2487426_rtm~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 1,968 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_for_kb2487426_sp1_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 1,692 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Package_for_kb2487426_sp1~31bf3856ad364e35~ia64~~6.1.1.0.mum |
| File version | Not Applicable |
| File size | 1,725 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Update-bf.mum |
| File version | Not Applicable |
| File size | 2,127 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 21:36 |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.16723_none_1d071927ea381895.manifest |
| File version | Not Applicable |
| File size | 1,300 |
| Date (UTC) | 21-Dec-2010 |
| Time (UTC) | 06:06 |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7600.20864_none_1d66768d0375417a.manifest |
| File version | Not Applicable |
| File size | 1,300 |
| Date (UTC) | 22-Dec-2010 |
| Time (UTC) | 06:57 |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.17527_none_1ef17755e75ae9dd.manifest |
| File version | Not Applicable |
| File size | 1,300 |
| Date (UTC) | 17-Dec-2010 |
| Time (UTC) | 07:41 |
| File name | Wow64_microsoft-windows-winsrv_31bf3856ad364e35_6.1.7601.21624_none_1f781343007b3da2.manifest |
| File version | Not Applicable |
| File size | 1,300 |
| Date (UTC) | 18-Dec-2010 |
| Time (UTC) | 08:23 |