"//./root/CIMV2" por el error 0x80041003

 "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" en el espacio de nombres "//./root/CIMV2" por el error 0x80041003
http://support.microsoft.com/default.aspx?scid=kb;en-US;2545227

CAUSE: This originated in the Windows 7 SP1 DVD/ISO creation process. There was an issue in the creation process that caused a WMI registration to remain in the DVD/ISO. Since the registration is designed to work only during the DVD/ISO creation process, it fails to run on a live system and causes these events. These events are not indicative of any issue in the system and can be safely ignored. If however you want to prevent these events from getting generated and want to remove this specific WMI registration manually, please follow the steps mentioned in this article for running the workaround script.
Se trata por tanto de un error "rutinario" que se puede ignorar, de todas formas en la página hay una herramienta Fix-It para que no se produzca más.
http://answers.microsoft.com/en-us/protect/forum/mse-protect_start/session-microsoft-security-essentials-oobe-stopped/387c21ed-75db-47e3-9baf-687f6c66f0eb?auth=1
In windows 7:
If you havent already resolved the issue, you will need to navigate to:
C:/program data/microsoft/microsoft security essentials/support/   -   then locate the file: "MSSEOOBE.etl" and simply delete it.
Once you restart the computer, MSE will recreate it, and that should resolve the issue. It worked for me at least.