Operating System? I am assuming that is Windows 2000.
Have you installed any software recently?
Do you have or had a virus?
Error message.
Source: PerfDisk
Event ID: 2001
Unable to read the disk performance information from the system. Disk performance counters must be enabled for at least one physical disk or logical volume in order for these counters to appear. Disk performance counters can be enabled by using the Hardware Device Manager property pages. Status code returned is data DWORD 0"
To resolve this error, depending on your circumstances, you may need to: Uninstall some software, remove a virus , or editing the Registry.
http://support.microsoft.com/default...b;en-us;296187
From Dallas,Texas...