How to reinstall WMI?
This is helpful if you want to reinstall WMI without reinstalling the OS, in order to be able to run 3DMark06 (they added some SystemInfo checking which uses this particular service). Extract (Open with Winrar, Winzip or similiar) file wbemoc.in_ from the full Windows CD i386 (or amd64) folder to Windows\inf folder then run (Start – Run) this: rundll32 advpack.dll,LaunchINFSection wbemoc.inf, WBEM When it asks for the files point it to the full Windows CD, i386 (or amd64) folder. After it finishes copying, reboot the machine. Try 3DMark. If that didn’t help at first, as it didn’t for me but it was necessary for the next steps, get a tool called Dial-a-Fix. In it, under Tools choose “Reset WMI” and Go. Reboot after finished. If maybe it still doesn’t work then try this but be careful when tampering with the registry.