To do this, open Control Panel -> Administrative Tools -> Services.
You will see all of Windows Services with its each switch option. If your Computer has not network connection, you can disable following services below here.
Windows Media Player Network Sharing Service
TelNet
Routing and Remote Access
Office Source Engine
Network DDE DSDM
Network DDE
NetMeeting Remote Desktop Sharing
Net.Tcp Port Sharing Service
Microsoft Office Groove Audit Service
Microsoft Office Diagnostics Service
Messenger
Machine Debug Manager
ClipBook
Indexing Service
Universal Plug and Play Device Host
Upload Manager
Windows Time cess
Server
SSDP Discovery Service
Remote Registry
Remote Procedure Call Locator
Remote Desktop Help Session Manager
Computer Browser
By close some of unwanted Windows Services, your PC will be more work efficiently
