Hi all 
Since a couple of month I get an error log message when I launch permon.exe :
Error ID 2001 - Source : Usbperf
Source: UsbperfType: WarningDescription:
Unable to read the "First Counter" value under the usbperf\Performance Key. Status codes returned in data.
Microsoft has published a workaround but it doesn't work on my system :
usbperf Event 2004 is logged in Application log
I have searched many sites onto this subject but all my research led me to nowhere ...
Does someone has a idea to get rid off these annoying message ? :huh:
Thank you
Since a couple of month I get an error log message when I launch permon.exe :
Error ID 2001 - Source : Usbperf
Source: UsbperfType: WarningDescription:
Unable to read the "First Counter" value under the usbperf\Performance Key. Status codes returned in data.
Microsoft has published a workaround but it doesn't work on my system :
usbperf Event 2004 is logged in Application log
I have searched many sites onto this subject but all my research led me to nowhere ...
Does someone has a idea to get rid off these annoying message ? :huh:
Thank you

Last edited:
My Computer
At a glance
Windows 7 Ultimate x64 - SP1Intel core i5-2500K8 Gb G-skillAti Radeon 5850
- OS
- Windows 7 Ultimate x64 - SP1
- CPU
- Intel core i5-2500K
- Motherboard
- Asus Sabertooth P67-B3
- Memory
- 8 Gb G-skill
- Graphics Card(s)
- Ati Radeon 5850
- Sound Card
- Integrated
- Monitor(s) Displays
- LG 23"
- Hard Drives
- Crucial M4 - SSD - 64 Go
1 To
- PSU
- Seasonic 560W
- Case
- Lian-li PC2100b
- Cooling
- Watercooling