BICTT

Have a customer with a lot of machines that have a broken WMI, so I guess I'd blog about possibilities to solve the issue for the agent installation part.

I refer to a blog posting by the Manageability Team Blog.

So, you could make a script that does something like this:

Xcopy \\aworkingmachine\c$\windows\system32\Wbem c:\windows\system32\wbem /i /y
cd \windows\system32\wbem
For /f %s in ('dir /b *.mof *.mfl') do mofcomp %s
net stop ccmexec
net stop winmgmt
net start winmgmt
net start ccmexec

and your agent installation should now work. Or something else is wrong

You can actually test if this is the problem by:
Start wbemtest. Connect to root\wmi. enum classes and type Eventtrace. If you get an error immediately run the above commands and try again.

Additional Comment:
A reader Tolga Balci, noted to me that the command in the script should contain only one percentage sign (%s) instead of two (%%s). I remember taking the double percentage straight from one of the batch files we have running. But as it didn't work for Tolga until they changed it to the single % I adjusted that as well on this page. If in your case that doesn't run you can always try to make it %%s. Thanks Tolga!