My Windows 2000 PC has been running well for many months, however it is now suffering strange delays and slowdowns. I have had to cancel my automated AVG scans, as they were running for 18 hours or more. I watched the scanning process and it would stick at random for up to a minute at a time. I opened up Task Manager, and under processes I see PFNetwork.exe and SERVICES.exe using up a huge amount of CPU. If I do a CPU usage check it's at 100% nearly all the time. It is on a LAN using TCP/IP and accesses the web through a proxy. What could be the problem? I have another Win2000 PC on the same network and it doesn't have PFNetwork.exe listed under processes.

I would suggest uninstalling the Freeweb Parental Control software. Either that, or disable it in the Registry so that it doesn't start up automatically. HKLM\Software\Microsoft\Windows\CurrentVersion\Run Life's more painless for the brainless.

Thanks Jennifer, I completely forgot this system had FW Parental Control installed on it! I don't know why it was using up so much CPU, but I've removed it and my system is back to normal now. Tommy.