When installing Service Pack 1 on Windows 7 installations, you may enounter the following error code in the \Windows\Logs\CBS\CBS.log: 0x8004a029
The log snippet will look similar to the following:
2011-02-21 18:56:58, Error CSI 000006e1 (F) Done with generic command 60 (0x0000003c); CreateProcess returned 0, CPAW returned S_OK Process exit code 41001 (0x0000a029) resulted in success? FALSE Process output: [l:73 "Trying to install vpcnfltr .....failed. Error code: 0x8004a029."][gle=0x80004005]
This is due to the filter limit in Windows 7. To resolve this, do the following:
Windows 7 is hard coded to allow 14 filter drivers, but the following registry sets the limit to 8 by default. You can adjust the amount up to 14 or delete this key and it will be set to max of 14.
Remove some filter driver from ncpa.cpl --> Chose network Properties --> Select and filter --> Uninstall
**Note** Not all networking filters are listed under ncpa.cpl, so application may need to be completely uninstalled (i.e. personal firewalls)
I didn't have this particular problem, but if I did, I don't know what I would have done without advice like this.
In other words, good job ;-) I've only recently encountered your blog. I immediately subscribed to the RSS feed. Where else are you going to find someone who can decypher Component-Based Servicing?
Glad I can help out a little here and there :)
Option 1 has solved my issues. Thanks a lot for the info!
Glad to help Craig.
It doesn´t work, still have the same problem
If you're seeing this problem Ed, check to see if you already have more than 14 filters. If you do, then you need to remove some to get it to work.
Can you please explain to me how I get to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\MaxNumFilters?
Please email me the answer, email@example.com
Start > Run > regedit.exe > navigate to the key above
I am using Windows 7 and MaxNumFilters is not there.
Are you highlighting the network key Jim? It's located in that portion of the hive.
I don't see nacpl.cpl. Did a search. Nothing. Is it hidden?
Nope Ed, thats all on me. I need to stop fatfingering things as I type them. The proper applet is ncpa.cpl. I couldnt have been more off if I had tried. Thanks for picking that up.
Really you must think this will work right you're a microsoft employee. Sorry to inform you this method doesn't work
Thanks alot !!!!
Solved my problem to update this from 8 to 14.
Hi Joseph, I just want to know what if the MaxNumberFilters is not in the registry under Networking hive. I'm pretty sure I went to the correct address but the folder is not there. Any suggestions?