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Installation of Service Pack 1 for Windows 7 fails with errors 0x8004a029 or 0x80004005 - E_FAIL

Article ID: 2530477 - View products that this article applies to.

SYMPTOMS

Installation of Service Pack 1 for Windows 7 may fail with either of the following errors:

0x80004005 - E_FAIL

0x8004a029

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CAUSE

This can occur if the number of installed network filter drivers exceeds the specified limit. By default, Windows 7 has a limit of 8, with a maximum allowable limit of 14.

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RESOLUTION

To have us resolve this problem for you, go to the "Fix it for me" section. If you prefer to fix this problem yourself, go to the "Let me fix it myself" section.

Fix it for me

To fix this problem automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.

Fix this problem
Microsoft Fix it 50738

Notes

This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.

Then, go to the "Did this fix the problem?" section.

Let me fix it myself

To resolve this problem, adjust the value of the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\ registry subkey. To do this, follow these steps:

1. Click Start , click Run , type regedit , and then click OK .

2. Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\

3. In the right pane, right-click MaxNumFilters, and then click Modify.

4. Change the value to “14”, and click to select the Decimal option, and then click OK.

Note: Default value is 8, 14 is the maximum

5. Close the Registry Editor.

If more than 14 filter drivers are installed on your computer, the above registry key will not alleviate the issue. If you have more than 14 network filter drivers installed, remove a number of the installed filter drivers to allow the service pack installation to succeed. Network filter drivers can be removed from the properties of the network connection in Ncpa.cpl.

Note: Do not remove the default Microsoft network filter drivers, such as Client for Microsoft Networks, QoS Packet Scheduler, File and Printer Sharing for Microsoft Networks or any of the included Internet Protocol entries. Examples of third-party network filter drivers would be firewall, QoS software or network virtualization software.

Did this fix the problem?

Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support
(http://support.microsoft.com/contactus)
.
We would appreciate your feedback. To provide feedback or to report any issues with this solution, please leave a comment on the "Fix it for me
(http://blogs.technet.com/fixit4me/)
" blog or send us an email
(mailto:fixit4me@microsoft.com?Subject=KB)
message.

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