高手指点下我电脑里哪些服务是没必要的

这是我在CMD下用 net start命令查到的我所开启的服务
“Application Layer Gateway Service
Ati HotKey Poller
Background Intelligent Transfer Service
COM+ Event System
Computer Browser
Contrl Center of Storm Media
Cryptographic Services
DCOM Server Process Launcher
DHCP Client
Distributed Link Tracking Client
DNS Client
Event Log
Fast User Switching Compatibility
IPSEC Services
Logical Disk Manager
Network Connections
Network Location Awareness (NLA)
Plug and Play
Print Spooler
Protected Storage
Remote Access Connection Manager
Remote Procedure Call (RPC)
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