Svchost using up a lot of CPU. Which service? Why?

I know that there are many svchost.exe's in your computer, and know their purpose.


One of them is taking up 50 cpu, and I don't know why. The services under that particular svchost are:





-Automatic Updates [wuauserv]


-Background Intelligent Transfer Service [BITS]


-COM+ Event System [EventSystem]


-Cryptographic Services [CryptSvc]


-DHCP Client [Dhcp]


-Error Reporting Service [ERSvc]


-Fast User Switching Compatibility [FastUserSwitchingCompatibility]


-Help and Support [helpsvc]


-Network Connections [Netman]


-Network Location Awareness (NLA) [Nla]


-Remote Access Connection Manager [RasMan]


-Security Center [wscsvc]


-Server [lanmanserver]


-Shell Hardware Detection [ShellHWDetection]


-System Event Notification [SENS]


-System Restore Service [srservice]


-Task Scheduler [Schedule]


-Telephony [TapiSrv]


-Themes [Themes]


-Windows Audio [AudioSrv]


-Windows Firewall/Internet Connection Sharing (ICS) [SharedAccess]


-Windows Management Instrumentation [winmgmt]-


-Wireless Zero Configuration [WZCSVC]


-Workstation [lanmanworkstation]





I'm running on a laptop, so I can tell that some of these services I don't really need, but that still brings up the question as to WHY this started happening. Please, any information would be very much appreciated.|||I've had a similar problem when i was running windows vista. It seems like its impossible to sort them all out so my personal experience i said forget it and went back to Xp but here is a website that may help you.


http://www.howtogeek.com/howto/windows-v鈥?/a>