PercentIdleTime value is empty in WMI
 

I have a strange behavior using WMI to get PercentIdleTime information from Win32_PerfRawData_PerfOS_Processor. [But It's occur only in Windows XP. All other released working fine]

The Idle value is correct for all processors but is not retrieved for "_Total" instance.

What might be the problem? How can i rectify that problem?

Guide me.

any update ?

Windows Management Instrumentation (WMI) is the infrastructure for management data and operations on Windows-based operating systems. You can write WMI scripts or applications to automate administrative tasks on remote computers but WMI also supplies management data to other parts of the operating system and products, for example System Center Operations Manager, formerly Microsoft Operations Manager (MOM), or Windows Remote Management