Visual artifacts occur when more than 1,000 controls are drawn in the same container in Windows 7 or Windows Server 2008 R2

Applies to: Windows 7 EnterpriseWindows 7 Home BasicWindows 7 Home Premium

Symptoms


When an application draw more than 1,000 controls in the same container on a computer that is running Windows 7 or Windows Server 2008 R2, visual artifacts occur.

Resolution


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix 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 hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix 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
  • 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:
    VersionProductMilestoneService branch
    6.1.760
    0.20xxx
    Windows 7 and Windows Server 2008 R2RTMLDR
    6.1.760
    1.21xxx
    Windows 7 and Windows Server 2008 R2SP1LDR
  • 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 Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are very important for maintaining 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 x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.1.7600.209472,340,35220-Apr-201105:20x86
Win32k.sys6.1.7601.217082,340,86420-Apr-201103:41x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.1.7600.209473,137,53620-Apr-201105:27x64
Win32k.sys6.1.7601.217083,137,53620-Apr-201105:17x64
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.1.7600.209477,425,02420-Apr-201105:22IA-64
Win32k.sys6.1.7601.217087,421,95220-Apr-201105:11IA-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 x86-based versions of Windows 7
File nameUpdate.mum
File versionNot applicable
File size2,773
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameX86_028d156d5d0bc9865a84f1588e771035_31bf3856ad364e35_6.1.7601.21708_none_49c82831942d4213.manifest
File versionNot applicable
File size694
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameX86_e5a0db4e64e3298e27694105a81014f5_31bf3856ad364e35_6.1.7600.20947_none_5efb553d2356d1f1.manifest
File versionNot applicable
File size694
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameX86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.20947_none_b980b66b14d5b3a8.manifest
File versionNot applicable
File size42,086
Date (UTC)20-Apr-2011
Time (UTC)08:07
PlatformNot applicable
File nameX86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21708_none_bb93536b11dac927.manifest
File versionNot applicable
File size42,086
Date (UTC)20-Apr-2011
Time (UTC)07:44
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameAmd64_4860b5812dd238db4948caf243e20963_31bf3856ad364e35_6.1.7600.20947_none_944fbf85e6615d7d.manifest
File versionNot applicable
File size698
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameAmd64_7539c6d10790b0953d71239d2fd80174_31bf3856ad364e35_6.1.7601.21708_none_a1e3560a17ce459f.manifest
File versionNot applicable
File size698
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameAmd64_846da5c2bf67bcd3a38ffccfd7204eea_31bf3856ad364e35_6.1.7600.20947_none_1e16da2f4766b021.manifest
File versionNot applicable
File size1,038
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameAmd64_88dbf9c812ca52250fed9b32b03bdf5f_31bf3856ad364e35_6.1.7601.21708_none_b3feb34713b1eff4.manifest
File versionNot applicable
File size1,038
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameAmd64_caf8e0f3c4308d18e261946752df72b8_31bf3856ad364e35_6.1.7600.20947_none_4ac2868fb24fec24.manifest
File versionNot applicable
File size698
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameAmd64_cbee03f7e8d6290bdce0cc51c9a1d413_31bf3856ad364e35_6.1.7601.21708_none_ed33a2cc8cdd0537.manifest
File versionNot applicable
File size698
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameAmd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.20947_none_159f51eecd3324de.manifest
File versionNot applicable
File size42,090
Date (UTC)20-Apr-2011
Time (UTC)17:46
PlatformNot applicable
File nameAmd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21708_none_17b1eeeeca383a5d.manifest
File versionNot applicable
File size42,090
Date (UTC)20-Apr-2011
Time (UTC)08:45
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size4,059
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.20947_none_1ff3fc410193e6d9.manifest
File versionNot applicable
File size4,178
Date (UTC)20-Apr-2011
Time (UTC)07:54
PlatformNot applicable
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21708_none_22069940fe98fc58.manifest
File versionNot applicable
File size4,178
Date (UTC)20-Apr-2011
Time (UTC)07:34
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_4860b5812dd238db4948caf243e20963_31bf3856ad364e35_6.1.7600.20947_none_3832c7f82e01f543.manifest
File versionNot applicable
File size697
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameIa64_53fb5370649f40c9e642bf41ace62b09_31bf3856ad364e35_6.1.7600.20947_none_f65293a78e2ab63b.manifest
File versionNot applicable
File size696
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameIa64_7539c6d10790b0953d71239d2fd80174_31bf3856ad364e35_6.1.7601.21708_none_45c65e7c5f6edd65.manifest
File versionNot applicable
File size697
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameIa64_f462311bedbca544eeeada5d9a95d59a_31bf3856ad364e35_6.1.7601.21708_none_8638e66d0e8a180c.manifest
File versionNot applicable
File size696
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameIa64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.20947_none_b9825a6114d3bca4.manifest
File versionNot applicable
File size42,088
Date (UTC)20-Apr-2011
Time (UTC)09:09
PlatformNot applicable
File nameIa64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21708_none_bb94f76111d8d223.manifest
File versionNot applicable
File size42,088
Date (UTC)20-Apr-2011
Time (UTC)08:47
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,169
Date (UTC)20-Apr-2011
Time (UTC)19:55
PlatformNot applicable
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.20947_none_1ff3fc410193e6d9.manifest
File versionNot applicable
File size4,178
Date (UTC)20-Apr-2011
Time (UTC)07:54
PlatformNot applicable
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21708_none_22069940fe98fc58.manifest
File versionNot applicable
File size4,178
Date (UTC)20-Apr-2011
Time (UTC)07:34
PlatformNot applicable