Windows is the most popular OS in today’s PC world. There are more than hundreds of SERVICES in windows that make it so popular to use. By default most of the services are turned on. But you may not require these services for your purpose. So you can disable some of the services running on machine to speed up your system. Disabling these services will save run time as well as boot time.

Here are a list of Windows 7 system services that can be safely set to Manual or Disabled.

PRECAUTION: It is more safe to set the following services to manual rather than disabling them. This is because when some times if windows needs a service windows can start it by itself if and only if it is set to manual. If you set it to disabled Windows 7 cannot start the service by it's own.

·         Right-click on Computer icon on desktop and select Manage, it'll open a new window. Now go to Services & Applications -> Services. You can also open the same from Administrative Tools -> Computer Management. Or you can directly open "Services" list by providing services.msc command in RUN or Startmenu search box.

·         Now you can set the unnecessary services to DISABLED or MANUAL. Just double-click on any service and select the desired option in Startup type list box.

 Display Name Option

ActiveX Installer (AxInstSV)

Application Experience

Adaptive Brightness

Application Layer Gateway Service

BitLocker Drive Encryption Service

Bluetooth Support Service

BranchCache

Certificate Propagation

Credential Manager

Computer Browser (If your computer is not connected to any network)

Desktop Window Manager Session Manager (If you don't use Aero theme)

Diagnostic Service Host

Diagnostic Policy Service

Diagnostic System Host

Distributed Link Tracking Client

Distributed Link Tracking Client

Encrypting File System (EFS)

Fax

Function Discovery Provider Host

Function Discovery Resource Publication

Health Key and Certificate Management 

HomeGroup Listener

HomeGroup Provider

Net.Tcp Port Sharing Service

IP Helper

Netlogon

Microsoft iSCSI Initiator Service

Media Center Extender Service

Network Access Protection Agent

Internet Connection Sharing (ICS)

Human Interface Device Access

Offline Files

Link-Layer Topology Discovery Mapper

Interactive Services Detection

Portable Device Enumerator Service

Print Spooler (If you don't have Printer)

Protected Storage

Peer Networking Identity Manager

Peer Networking Grouping

Peer Name Resolution Protocol

PnP-X IP Bus Enumerator

PNRP Machine Name Publication Service

Problem Reports and Solutions Control Panel Support

Program Compatibility Assistant Service

Remote Registry (Always disable it for Security purposes)

Remote Desktop Configuration

Remote Desktop Services

Remote Registry

Remote Desktop Services UserMode Port Redirector

Secondary Logon

SNMP Trap

Tablet PC Input Service

Portable Device Enumerator Service

Security Center

Smart Card Removal Policy

Server (If your computer is not connected to any network)

Tablet PC Input Service

TCP/IP NetBIOS Helper

Smart Card

Windows Biometric Service

WebClient

Windows CardSpace

Windows Color System

Windows Media Center Receiver Service

Windows Connect Now

Windows Media Center Scheduler Service

Windows Error Reporting Service

Routing and Remote Access

Windows Search

Themes ( If you use Windows Classic theme)

Windows Error Reporting Service

Windows Media Player Network Sharing Service

Windows Media Center Service Launcher

Windows Remote Management (WS-Management)

WinHTTP Web Proxy Auto-Discovery Service

Windows Search (If you don't use Windows Search feature frequently)

Windows Time (If you don't want to update system tray clock time using Internet)

 Restart your machine and check whether it is running properly or not. If required then TURN ON the required service. If your windows fails to boot then choose safe mode option to troubleshoot your system.