Don't have any ideas just yet.
But just so that it's clear what the expected output looks like, on my own Windows 7 Pro x64 SP1 system when I enter "perfmon /report" in the Search area I get this screen first:
After a minute or two of gathering data, I then get the "report" output. Top half looks like this:
and the bottom part looks like this (I could expand each reporting group if I wanted to):
Just in passing, I expect it will produce exactly the same result, but you can also request the identical output directly from Control Panel:
Control Panel -> All Control Panel Items -> Performance Information and Tools -> Advanced Tools, and then push the "Generate a system health report" link at the bottom of the page.