How many system services are there on my Windows 7 System?

The number of system services on your Windows 7 computer is depending on which Windows 7 edition you have, and how many software have been installed on the computer.

Here is a complete list system services on a Windows 7 Professional edition with some software installed by Lenovo:

ActiveX Installer (AxInstSV)
Adaptive Brightness
Application Experience
Application Identity
Application Information
Application Layer Gateway Service
Application Management
ASP.NET State Service
Background Intelligent Transfer Service
Base Filtering Engine
BitLocker Drive Encryption Service
Block Level Backup Engine Service
Bluetooth Service
Bluetooth Support Service
BranchCache
Certificate Propagation
CNG Key Isolation
COM+ Event System
COM+ System Application
Computer Browser
Credential Manager
Cryptographic Services
DCOM Server Process Launcher
Desktop Window Manager Session Manager
DHCP Client
Diagnostic Policy Service
Diagnostic Service Host
Diagnostic System Host
Disk Defragmenter
Distributed Link Tracking Client
Distributed Transaction Coordinator
DNS Client
Encrypting File System (EFS)
Extensible Authentication Protocol
Fax
Function Discovery Provider Host
Function Discovery Resource Publication
Group Policy Client
Health Key and Certificate Management
HomeGroup Listener
HomeGroup Provider
Human Interface Device Access
IKE and AuthIP IPsec Keying Modules
Interactive Services Detection
Internet Connection Sharing (ICS)
IP Helper
IPsec Policy Agent
Juniper Network Connect Service
KtmRm for Distributed Transaction Coordinator
Lenovo Auto Scroll
Lenovo Camera Mute
Lenovo Hotkey Client Loader
Lenovo Keyboard Noise Reduction
Lenovo Microphone Mute
Link-Layer Topology Discovery Mapper
McAfee Endpoint Encryption Agent
McAfee Framework Service
McAfee Security Scan Component Host Service
Media Center Extender Service
Microsoft .NET Framework NGEN v2.0.50727_X86
Microsoft .NET Framework NGEN v4.0.30319_X86
Microsoft Forefront Client Security Antimalware Service
Microsoft Forefront Client Security State Assessment Service
Microsoft iSCSI Initiator Service
Microsoft SharePoint Workspace Audit Service
Microsoft Software Shadow Copy Provider
MOM
Multimedia Class Scheduler
Net.Msmq Listener Adapter
Net.Pipe Listener Adapter
Net.Tcp Listener Adapter
Net.Tcp Port Sharing Service
Netlogon
Network Access Protection Agent
Network Connections
Network List Service
Network Location Awareness
Network Store Interface Service
Office  Source Engine
Office Software Protection Platform
Offline Files
On Screen Display
Parental Controls
Peer Name Resolution Protocol
Peer Networking Grouping
Peer Networking Identity Manager
Performance Logs & Alerts
Plug and Play
PnP-X IP Bus Enumerator
PNRP Machine Name Publication Service
Portable Device Enumerator Service
Power
Print Spooler
Problem Reports and Solutions Control Panel Support
Program Compatibility Assistant Service
Protected Storage
Protexis Licensing V2
Quality Windows Audio Video Experience
Remote Access Auto Connection Manager
Remote Access Connection Manager
Remote Desktop Configuration
Remote Desktop Services
Remote Desktop Services UserMode Port Redirector
Remote Procedure Call (RPC)
Remote Procedure Call (RPC) Locator
Remote Registry
Routing and Remote Access
RPC Endpoint Mapper
Secondary Logon
Secure Socket Tunneling Protocol Service
Security Accounts Manager
Security Center
Server
Shell Hardware Detection
Smart Card
Smart Card Removal Policy
SMS Agent Host
SMS Task Sequence Agent
SNMP Trap
Software Protection
SPP Notification Service
SSDP Discovery
Storage Service
Superfetch
System Event Notification Service
Tablet PC Input Service
Task Scheduler
TCP/IP NetBIOS Helper
Telephony
Themes
ThinkPad PM Service
Thread Ordering Server
TPM Base Services
Ulead Burning Helper
UPnP Device Host
User Profile Service
Virtual Disk
Volume Shadow Copy
WebClient
Windows Audio
Windows Audio Endpoint Builder
Windows Backup
Windows Biometric Service
Windows CardSpace
Windows Color System
Windows Connect Now - Config Registrar
Windows Defender
Windows Driver Foundation - User-mode Driver Framework
Windows Error Reporting Service
Windows Event Collector
Windows Event Log
Windows Firewall
Windows Font Cache Service
Windows Image Acquisition (WIA)
Windows Installer
Windows Management Instrumentation
Windows Media Center Receiver Service
Windows Media Center Scheduler Service
Windows Media Player Network Sharing Service
Windows Modules Installer
Windows Presentation Foundation Font Cache 3.0.0.0
Windows Remote Management (WS-Management)
Windows Search
Windows Time
Windows Update
WinHTTP Web Proxy Auto-Discovery Service
Wired AutoConfig
WLAN AutoConfig
WMI Performance Adapter
Workstation
WWAN AutoConfig

⇒ Services Console on Windows 7

⇐ Categories of Services on Windows 7?

⇑ Introduction of Services on Windows 7

⇑⇑ Windows 7 Services Tutorials