Symptoms
Consider the following scenarios:
Scenario 1
-
You have a computer that is running Windows 7.
-
The computer has a processor that has more than 16 megabytes (MB) of L3 cache.
-
You run the Windows Experience Index.
In this scenario, you receive the following error message:
Could not measure system memory performance
Scenario 2
-
You have a computer that is running Windows 7.
-
The computer has a processor that has more than 16 MB of L3 cache.
-
You run the full Windows System Assessment Tests (WinSAT) test or the WinSAT memory-only test (Winsat.exe mem).
In this scenario, the test fails and you receive the following error message:
The buffer size is too large. Max is 32 MB
Cause
This issue occurs because the hard-coded buffer size limitation is 32 MB. All processors that have an L3 cache size larger than 16 MB will experience this issue when the processors perform a memory test.
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 Web site:
http://support.microsoft.com/contactus/?ws=supportNote 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 Windows 7 or Windows 7 Service Pack 1 (SP1).For more information about how to obtain a Windows 7 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 do not have to 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 file information note
Important Windows 7 and Windows Server 2008 R2 updates are included in the same packages.
-
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
SR_Level
Service branch
6.1.760 0. 16xxx
Windows 7 and Windows Server 2008 R2
RTM
GDR
6.1.760 0. 21xxx
Windows 7 and Windows Server 2008 R2
RTM
LDR
6.1.760 1. 17xxx
Windows 7 and Windows Server 2008 R2
SP1
GDR
6.1.760 1. 21xxx
Windows 7 and Windows Server 2008 R2
SP1
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) that are installed for each environment are listed separately in the "Additional file information for Windows 7" section. 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 x86-based versions of Windows 7
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Winsat.exe |
6.1.7600.16926 |
3,367,424 |
08-Dec-2011 |
05:35 |
x86 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:48 |
Not Applicable |
|
Winsat.exe |
6.1.7600.21105 |
3,367,424 |
08-Dec-2011 |
05:33 |
x86 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:48 |
Not Applicable |
|
Winsat.exe |
6.1.7601.17738 |
3,367,936 |
08-Dec-2011 |
05:35 |
x86 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:48 |
Not Applicable |
|
Winsat.exe |
6.1.7601.21875 |
3,367,936 |
08-Dec-2011 |
06:02 |
x86 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:48 |
Not Applicable |
For all supported x64-based versions of Windows 7
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Winsat.exe |
6.1.7600.16926 |
3,957,760 |
08-Dec-2011 |
06:21 |
x64 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:09 |
Not Applicable |
|
Winsat.exe |
6.1.7600.21105 |
3,957,760 |
08-Dec-2011 |
06:24 |
x64 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:09 |
Not Applicable |
|
Winsat.exe |
6.1.7601.17738 |
3,958,272 |
08-Dec-2011 |
06:32 |
x64 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:09 |
Not Applicable |
|
Winsat.exe |
6.1.7601.21875 |
3,958,272 |
08-Dec-2011 |
06:11 |
x64 |
|
Winsat.prx |
Not Applicable |
3,922 |
10-Jun-2009 |
21:09 |
Not Applicable |
Workaround
To work around the issue, you can limit the buffer size to 32 MB or less by using the -buffersize switch.
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 the WinSAT, visit the following Microsoft website:
How to configure the WinSAT scoresFor 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
Additional files for all supported x86-based versions of Windows 7
|
File name |
Update-bf.mum |
|
File version |
Not Applicable |
|
File size |
2,268 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
Update.mum |
|
File version |
Not Applicable |
|
File size |
2,315 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
X86_38ae5b395024ee19734e926090295796_31bf3856ad364e35_6.1.7601.21875_none_ed936ee44dfdc957.manifest |
|
File version |
Not Applicable |
|
File size |
715 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
X86_5d43a069d3f3e29b208d98230d604ac8_31bf3856ad364e35_6.1.7600.16926_none_e64f36425271fa4f.manifest |
|
File version |
Not Applicable |
|
File size |
715 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
X86_924f9307cdb16c276188e3ad07552722_31bf3856ad364e35_6.1.7600.21105_none_503021f35a895096.manifest |
|
File version |
Not Applicable |
|
File size |
715 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
X86_e30a14c4e91ab9455f149775f3ac779c_31bf3856ad364e35_6.1.7601.17738_none_4d60b457932c9b0e.manifest |
|
File version |
Not Applicable |
|
File size |
715 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
X86_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7600.16926_none_7bad3932187bef06.manifest |
|
File version |
Not Applicable |
|
File size |
13,455 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
06:13 |
|
Platform |
Not Applicable |
|
File name |
X86_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7600.21105_none_7c4b4dad318a70d9.manifest |
|
File version |
Not Applicable |
|
File size |
13,455 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
06:11 |
|
Platform |
Not Applicable |
|
File name |
X86_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7601.17738_none_7d8ac6e015a8a991.manifest |
|
File version |
Not Applicable |
|
File size |
13,455 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
06:15 |
|
Platform |
Not Applicable |
|
File name |
X86_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7601.21875_none_7de6231d2ee96d1a.manifest |
|
File version |
Not Applicable |
|
File size |
13,455 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
06:36 |
|
Platform |
Not Applicable |
Additional files for all supported x64-based versions of Windows 7
|
File name |
Amd64_3d09adb2ec8cba81e9c4050779cbcc32_31bf3856ad364e35_6.1.7600.21105_none_d285fc0c19c7fd95.manifest |
|
File version |
Not Applicable |
|
File size |
719 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
Amd64_43ef71aafe94136dc9423db6d1408347_31bf3856ad364e35_6.1.7600.16926_none_f0f82550c780597b.manifest |
|
File version |
Not Applicable |
|
File size |
719 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
Amd64_71a4f429924659d3348f181841a5ffca_31bf3856ad364e35_6.1.7601.17738_none_32c25878fdaa673c.manifest |
|
File version |
Not Applicable |
|
File size |
719 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
Amd64_aec5935c9c3325cd8d5c6a570f9178ee_31bf3856ad364e35_6.1.7601.21875_none_65ee9ec2beb382d3.manifest |
|
File version |
Not Applicable |
|
File size |
719 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
Amd64_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7600.16926_none_d7cbd4b5d0d9603c.manifest |
|
File version |
Not Applicable |
|
File size |
13,459 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
07:03 |
|
Platform |
Not Applicable |
|
File name |
Amd64_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7600.21105_none_d869e930e9e7e20f.manifest |
|
File version |
Not Applicable |
|
File size |
13,459 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
07:02 |
|
Platform |
Not Applicable |
|
File name |
Amd64_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7601.17738_none_d9a96263ce061ac7.manifest |
|
File version |
Not Applicable |
|
File size |
13,459 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
07:13 |
|
Platform |
Not Applicable |
|
File name |
Amd64_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.1.7601.21875_none_da04bea0e746de50.manifest |
|
File version |
Not Applicable |
|
File size |
13,459 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
07:33 |
|
Platform |
Not Applicable |
|
File name |
Update-bf.mum |
|
File version |
Not Applicable |
|
File size |
2,284 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
|
File name |
Update.mum |
|
File version |
Not Applicable |
|
File size |
2,331 |
|
Date (UTC) |
08-Dec-2011 |
|
Time (UTC) |
17:49 |
|
Platform |
Not Applicable |
