Name Description Status Startup Type Log On As .NET Runtime Optimization Service v2.0.50727_X86 Microsoft .NET Framework NGEN Automatic Local System Alerter Notifies selected users and computers of administrative alerts. If the service is stopped, programs that use administrative alerts will not receive them. If this service is disabled, any services that explicitly depend on it will fail to start. Disabled Local Service Apple Mobile Device Provides the interface to Apple mobile devices. Started Automatic Local System Application Layer Gateway Service Provides support for 3rd party protocol plug-ins for Internet Connection Sharing and the Windows Firewall. Started Manual Local Service Application Management Provides software installation services such as Assign, Publish, and Remove. Manual Local System ASP.NET State Service Provides support for out-of-process session states for ASP.NET. If this service is stopped, out-of-process requests will not be processed. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Network Service a-squared Anti-Malware Service Scans the PC for unwanted software and provides protection from malicious code Started Automatic Local System a-squared Free Service Scans the PC for unwanted software and provides protection from malicious code Started Automatic Local System Automatic LiveUpdate Scheduler Manages the scheduling of Automatic LiveUpdate sessions Started Automatic Local System Automatic Updates Enables the download and installation of Windows updates. If this service is disabled, this computer will not be able to use the Automatic Updates feature or the Windows Update Web site. Started Automatic Local System Background Intelligent Transfer Service Transfers files in the background using idle network bandwidth. If the service is stopped, features such as Windows Update, and MSN Explorer will be unable to automatically download programs and other information. If this service is disabled, any services that explicitly depend on it may fail to transfer files if they do not have a fail safe mechanism to transfer files directly through IE in case BITS has been disabled. Manual Local System Bonjour Service Bonjour allows applications like iTunes and Safari to advertise and discover services on the local network. Having Bonjour running enables you to connect to hardware devices like Apple TV and software services like iTunes sharing and AirTunes. If you disable Bonjour, any network service that explicitly depends on it will fail to start. Started Automatic Local System ClipBook Enables ClipBook Viewer to store information and share it with remote computers. If the service is stopped, ClipBook Viewer will not be able to share information with remote computers. If this service is disabled, any services that explicitly depend on it will fail to start. Disabled Local System COM Host COM aggregation host service Manual Local System COM+ Event System Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications. If this service is disabled, any services that explicitly depend on it will fail to start. Started Manual Local System COM+ System Application Manages the configuration and tracking of Component Object Model (COM)+-based components. If the service is stopped, most COM+-based components will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local System Computer Browser Maintains an updated list of computers on the network and supplies this list to computers designated as browsers. If this service is stopped, this list will not be updated or maintained. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System Cryptographic Services Provides three management services: Catalog Database Service, which confirms the signatures of Windows files; Protected Root Service, which adds and removes Trusted Root Certification Authority certificates from this computer; and Key Service, which helps enroll this computer for certificates. If this service is stopped, these management services will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System CSIScanner Scans your PC to check for malware threats that may have bypassed your antivirus or antispyware products Started Automatic Local System DCOM Server Process Launcher Provides launch functionality for DCOM services. Started Automatic Local System DHCP Client Manages network configuration by registering and updating IP addresses and DNS names. Started Automatic Local System Diskeeper Controls the Windows Diskeeper Service Started Automatic Local System Distributed Link Tracking Client Maintains links between NTFS files within a computer or across computers in a network domain. Started Automatic Local System Distributed Transaction Coordinator Coordinates transactions that span multiple resource managers, such as databases, message queues, and file systems. If this service is stopped, these transactions will not occur. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Network Service DNS Client Resolves and caches Domain Name System (DNS) names for this computer. If this service is stopped, this computer will not be able to resolve DNS names and locate Active Directory domain controllers. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Network Service Error Reporting Service Allows error reporting for services and applictions running in non-standard environments. Started Automatic Local System Event Log Enables event log messages issued by Windows-based programs and components to be viewed in Event Viewer. This service cannot be stopped. Started Automatic Local System Extensible Authentication Protocol Service Provides windows clients Extensible Authentication Protocol Service Manual Local System Fast User Switching Compatibility Provides management for applications that require assistance in a multiple user environment. Started Manual Local System Fax Enables you to send and receive faxes, utilizing fax resources available on this computer or on the network. Started Automatic Local System GoBack Polling Service GoBack Polling Service Started Automatic Local System Health Key and Certificate Management Service Manages health certificates and keys (used by NAP) Manual Local System Help and Support Enables Help and Support Center to run on this computer. If this service is stopped, Help and Support Center will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System HTTP SSL This service implements the secure hypertext transfer protocol (HTTPS) for the HTTP service, using the Secure Socket Layer (SSL). If this service is disabled, any services that explicitly depend on it will fail to start. Started Manual Local System Human Interface Device Access Enables generic input access to Human Interface Devices (HID), which activates and maintains the use of predefined hot buttons on keyboards, remote controls, and other multimedia devices. If this service is stopped, hot buttons controlled by this service will no longer function. If this service is disabled, any services that explicitly depend on it will fail to start. Disabled Local System IMAPI CD-Burning COM Service Manages CD recording using Image Mastering Applications Programming Interface (IMAPI). If this service is stopped, this computer will be unable to record CDs. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local System Indexing Service Indexes contents and properties of files on local and remote computers; provides rapid access to files through flexible querying language. Manual Local System InstallDriver Table Manager Provides support for the Running Object Table for InstallShield Drivers Manual Local System iPod Service iPod hardware management services Started Manual Local System IPSEC Services Manages IP security policy and starts the ISAKMP/Oakley (IKE) and the IP security driver. Started Automatic Local System Lavasoft Ad-Aware Service Ad-Aware service Started Automatic Local System LiveUpdate LiveUpdate Core Engine Manual Local System LiveUpdate Notice Manages Norton product notices Started Automatic Local System Logical Disk Manager Detects and monitors new hard disk drives and sends disk volume information to Logical Disk Manager Administrative Service for configuration. If this service is stopped, dynamic disk status and configuration information may become out of date. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local System Logical Disk Manager Administrative Service Configures hard disk drives and volumes. The service only runs for configuration processes and then stops. Manual Local System Machine Debug Manager Supports local and remote debugging for Visual Studio and script debuggers. If this service is stopped, the debuggers will not function properly. Started Automatic Local System Maxtor Service Maxtor Services for Hardware Detection Started Automatic Local System Messenger Transmits net send and Alerter service messages between clients and servers. This service is not related to Windows Messenger. If this service is stopped, Alerter messages will not be transmitted. If this service is disabled, any services that explicitly depend on it will fail to start. Disabled Local System MS Software Shadow Copy Provider Manages software-based volume shadow copies taken by the Volume Shadow Copy service. If this service is stopped, software-based volume shadow copies cannot be managed. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local System Net Logon Supports pass-through authentication of account logon events for computers in a domain. Manual Local System Net.Tcp Port Sharing Service Provides ability to share TCP ports over the net.tcp protocol. Disabled Local Service NetMeeting Remote Desktop Sharing Enables an authorized user to access this computer remotely by using NetMeeting over a corporate intranet. If this service is stopped, remote desktop sharing will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local System Network Access Protection Agent Allows windows clients to participate in Network Access Protection Manual Local System Network Connections Manages objects in the Network and Dial-Up Connections folder, in which you can view both local area network and remote connections. Started Manual Local System Network DDE Provides network transport and security for Dynamic Data Exchange (DDE) for programs running on the same computer or on different computers. If this service is stopped, DDE transport and security will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Disabled Local System Network DDE DSDM Manages Dynamic Data Exchange (DDE) network shares. If this service is stopped, DDE network shares will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Disabled Local System Network Location Awareness (NLA) Collects and stores network configuration and location information, and notifies applications when this information changes. Started Manual Local System Network Provisioning Service Manages XML configuration files on a domain basis for automatic network provisioning. Manual Local System Norton UnErase Protection Protects files deleted from command line prompt and applications Started Automatic Local System NT LM Security Support Provider Provides security to remote procedure call (RPC) programs that use transports other than named pipes. Manual Local System Office Source Engine Saves installation files used for updates and repairs and is required for the downloading of Setup updates and Watson error reports. Manual Local System Performance Logs and Alerts Collects performance data from local or remote computers based on preconfigured schedule parameters, then writes the data to a log or triggers an alert. If this service is stopped, performance information will not be collected. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Network Service Plug and Play Enables a computer to recognize and adapt to hardware changes with little or no user input. Stopping or disabling this service will result in system instability. Started Automatic Local System Pml Driver HPH11 Started Manual Local System Pml Driver HPZ12 Started Automatic Local System Portable Media Serial Number Service Retrieves the serial number of any portable media player connected to this computer. If this service is stopped, protected content might not be down loaded to the device. Manual Local System Print Spooler Loads files to memory for later printing. Started Automatic Local System Protected Storage Provides protected storage for sensitive data, such as private keys, to prevent access by unauthorized services, processes, or users. Started Automatic Local System QoS RSVP Provides network signaling and local traffic control setup functionality for QoS-aware programs and control applets. Manual Local System Remote Access Auto Connection Manager Creates a connection to a remote network whenever a program references a remote DNS or NetBIOS name or address. Manual Local System Remote Access Connection Manager Creates a network connection. Started Manual Local System Remote Desktop Help Session Manager Manages and controls Remote Assistance. If this service is stopped, Remote Assistance will be unavailable. Before stopping this service, see the Dependencies tab of the Properties dialog box. Manual Local System Remote Procedure Call (RPC) Provides the endpoint mapper and other miscellaneous RPC services. Started Automatic Network Service Remote Procedure Call (RPC) Locator Manages the RPC name service database. Manual Network Service Removable Storage Manual Local System Routing and Remote Access Offers routing services to businesses in local area and wide area network environments. Disabled Local System Secondary Logon Enables starting processes under alternate credentials. If this service is stopped, this type of logon access will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System Security Accounts Manager Stores security information for local user accounts. Started Automatic Local System Security Center Monitors system security settings and configurations. Disabled Local System Server Supports file, print, and named-pipe sharing over the network for this computer. If this service is stopped, these functions will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System Shell Hardware Detection Started Automatic Local System Smart Card Manages access to smart cards read by this computer. If this service is stopped, this computer will be unable to read smart cards. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local Service SNMP Service Includes agents that monitor the activity in network devices and report to the network console workstation. Started Automatic Local System SNMP Trap Service Receives trap messages generated by local or remote SNMP agents and forwards the messages to SNMP management programs running on this computer. Manual Local Service Speed Disk service Used to schedule disk defragmentation Started Automatic Local System SSDP Discovery Service Enables discovery of UPnP devices on your home network. Started Manual Local Service Symantec Core LC Symantec Core LC Manual Local System Symantec Event Manager Event propagation and logging service Started Automatic Local System Symantec Lic NetConnect service Symantec Lic NetConnect Service Started Automatic Local System Symantec Settings Manager Settings storage and management service Started Automatic Local System System Event Notification Tracks system events such as Windows logon, network, and power events. Notifies COM+ Event System subscribers of these events. Started Automatic Local System System Restore Service Performs system restore functions. To stop service, turn off System Restore from the System Restore tab in My Computer->Properties Started Automatic Local System Task Scheduler Enables a user to configure and schedule automated tasks on this computer. If this service is stopped, these tasks will not be run at their scheduled times. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System TCP/IP NetBIOS Helper Enables support for NetBIOS over TCP/IP (NetBT) service and NetBIOS name resolution. Started Automatic Local Service Telephony Provides Telephony API (TAPI) support for programs that control telephony devices and IP based voice connections on the local computer and, through the LAN, on servers that are also running the service. Started Manual Local System Terminal Services Allows multiple users to be connected interactively to a machine as well as the display of desktops and applications to remote computers. The underpinning of Remote Desktop (including RD for Administrators), Fast User Switching, Remote Assistance, and Terminal Server. Started Manual Local System Themes Provides user experience theme management. Started Automatic Local System Uninterruptible Power Supply Manages an uninterruptible power supply (UPS) connected to the computer. Manual Local System Universal Plug and Play Device Host Provides support to host Universal Plug and Play devices. Started Manual Local Service Volume Shadow Copy Manages and implements Volume Shadow Copies used for backup and other purposes. If this service is stopped, shadow copies will be unavailable for backup and the backup may fail. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local System WebClient Enables Windows-based programs to create, access, and modify Internet-based files. If this service is stopped, these functions will not be available. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local Service Windows Audio Manages audio devices for Windows-based programs. If this service is stopped, audio devices and effects will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System Windows CardSpace Securely enables the creation, management, and disclosure of digital identities. Manual Local System Windows Defender Helps protect users from malicious software, spyware, and other potentially unwanted software Started Automatic Local System Windows Driver Foundation - User-mode Driver Framework Manages user-mode driver host processes Manual Local System Windows Firewall/Internet Connection Sharing (ICS) Provides network address translation, addressing, name resolution and/or intrusion prevention services for a home or small office network. Started Automatic Local System Windows Image Acquisition (WIA) Provides image acquisition services for scanners and cameras. Started Automatic Local System Windows Installer Adds, modifies, and removes applications provided as a Windows Installer (*.msi) package. If this service is disabled, any services that explicitly depend on it will fail to start. Manual Local System Windows Management Instrumentation Provides a common interface and object model to access management information about operating system, devices, applications and services. If this service is stopped, most Windows-based software will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System Windows Media Player Network Sharing Service Shares Windows Media Player libraries to other networked players and media devices using Universal Plug and Play Started Automatic Network Service Windows Presentation Foundation Font Cache 3.0.0.0 Optimizes performance of Windows Presentation Foundation (WPF) applications by caching commonly used font data. WPF applications will start this service if it is not already running. It can be disabled, though doing so will degrade the performance of WPF applications. Manual Local Service Windows Time Maintains date and time synchronization on all clients and servers in the network. If this service is stopped, date and time synchronization will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System Wired AutoConfig This service performs IEEE 802.1X authentication on Ethernet interfaces Manual Local System Wireless Zero Configuration Provides automatic configuration for the 802.11 adapters Started Automatic Local System WMI Performance Adapter Provides performance library information from WMI HiPerf providers. Manual Local System Workstation Creates and maintains client network connections to remote servers. If this service is stopped, these connections will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start. Started Automatic Local System