Is Win32_PerfFormattedData_PerfDisk_PhysicalDisk missing from WMI in Vista?

Posted by Martin on Stack Overflow See other posts from Stack Overflow or by Martin
Published on 2010-03-30T05:22:29Z Indexed on 2010/03/30 5:33 UTC
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Vista

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wmi

From what I understand, the following script should work in Windows XP and higher, but it doesn't work for me in Vista Business 32-bit Service Pack 2. Thus far I have been very unsuccessful googling for information about this performance class.

strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")

Set colApps = objWMIService.ExecQuery("Select * from Win32_PerfFormattedData_PerfDisk_PhysicalDisk")
For Each objApp in colApps
    Wscript.Echo objApp.Caption
Next

Does this WMI class simply not exist in Vista? If it is just me, is there a way to fix WMI? I have already tried running winmgmt /resetrepository and winmgmt /resyncperf and neither helps.

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