[求助]下面的服务那些是没用的！？

Alerter
Application Layer Gateway Service
Automatic Updates
COM+ Event System
Cryptographic Services
DCOM Server Process Launcher
DHCP Client
Distributed Link Tracking Client
Distributed Transaction Coordinator
DNS Client
Event Log
Fast User Switching Compatibility
Help and Support
IPSEC Services
Logical Disk Manager
Messenger
Network Connections
Network Location Awareness (NLA)
Plug and Play
Protected Storage
Remote Access Connection Manager
Remote Procedure Call (RPC)
Rising Personal Firewall Service
Rising Process Communication Center
RsRavMon Service
Secondary Logon
Security Accounts Manager
Security Center
Server
Shell Hardware Detection
SSDP Discovery Service
System Event Notification
System Restore Service
Task Scheduler
TCP/IP NetBIOS Helper
Telephony
Terminal Services
Themes
WebClient
Windows Audio
Windows Firewall/Internet Connection Sharing (ICS)
Windows Management Instrumentation
Windows Time
Wireless Zero Configuration
Workstation
我的电脑里开了这些服务，谁能告诉我哪些是没用的！？