Hi,
I’ve just been troubleshooting a PC that was failing when the SCCM 2012 client was being pushed to it, with the below error located on the client’s log file ccmsetup.log:

MSI: Setup failed due to unexpected circumstances
The error code is 80041026

After trying the install locally and still having it fail, I took the next logical step and googled it.

I found this blog, which had a similar issue but different error code:

http://www.madanmohan.com/2010/10/msi-setup-failed-due-to-unexpected.html

Luckily the fix was the same, due to something wrong with the WMI Repositry.

Following these instructions worked perfectly:

http://www.madanmohan.com/2010/10/rebuilding-wmi-repository.html

Due to being an XP client, the steps I ran were:

net stop winmgmt

Using Windows Explorer, rename the folder %windir%\System32\Wbem\Repository. (For example, %windir%\System32\Wbem\Repository_bad). %windir% represents the path to the Windows directory, which is typically C:\Windows.

net start winmgmt

rundll32 wbemupgd, UpgradeRepository

That was it, no reboot required. Retrying the install again was then successful.

Thanks Madan’s Blog!