I'm not sure how to respond to be helpful here.
Even before we start, a note of caution: Making Changes in Services can have a huge impact on your machine, much like making changes in the Registry. Some changes can make your machine inoperable until you restore the service.
So here we go: "Services" are integral parts of the Windows operating system that "turn on" at boot, and which are generally never "seen", but still are actively involved in conducting the business that the owner/user may be instructing through mouse/keyboard input, for instance when loading applications/utilities and general browsing inside of the computer.
SVChost.exe is a general service that provides a vehicle for various procedures that generally load from a .dll file in the C:\Windows\System32 file. As such, there are a huge variety of routines that can run in "dependency" to SVChost. You've identified a fairly long list of items that are running in dependency to SVChost.exe.
Services "do" consume system resources, but most often any one item running in dependency to SVChost is not consuming much in the way of resource. The "accumulation" may be a different story.
To my knowledge there are a ton of articles available via the Internet regarding Services.
so "Google Is Your Friend".
Unfortunately the constellation of Services running on any one persons machine will most likely be "very" different that what is running on another person's machine. So there are no "general guidelines" that have a hard-and-fast rule for best performance.
This MS Article gives a reasonable overview of services, but without recommendations of what good or bad changes you could make.
http://support.microsoft.com/default.aspx?…b;en-us;Q314056
Here's a site (ElderGeek) which take one of the most sensible approaches to educating people about Services.
I recommend that you "look up" each of the items that you wish to learn about.
And yes, ElderGeek does give at least "limited" recommendations about need for an item:
yes, possibly, optional, no. ………………………..Hey, It's your choice.
Bottom Line: if you are trying to recover system resources, you may be better off disabling many of your installed softwares that install "auto-updaters". That's why I asked you to generate the list above.
http://www.theeldergeek.com/services_guide.htm
in it you can examine any of the following:
Alerter Service
Application Layer Gateway Service
Application Management Service
Automatic Updates Service
Background Intelligent Transfer Service
ClipBook Service
COM+ Event System Service
COM+ System Application Service
Computer Browser Service
Cryptographic Services Service
DCOM Server Process Launcher
DHCP Client Service
Distributed Link Tracking Client Service
Distributed Transaction Coordinator Service
DNS Client Service
Error Reporting Service
Event Log Service
Fast User Switching Compatibility Service
Help and Support Service
HID Input Service
HTTP SSL
IMAPI CD-Burning COM Service
Indexing Service
Internet Connection - Firewall (ICF) / Sharing (ICS) Service
IPSEC Services Service
Logical Disk Manager Service
Logical Disk Manager Administrative Service
Machine Debug Manager Service
Messenger Service
MS Software Shadow Copy Provider Service
Net Logon Service
NetMeeting Remote Desktop Sharing Service
Network Connections Service
Network DDE Service
Network DDE DSDM Service
Network Location Awareness (NLA) Service
Network Provisioning Service
NT LM Security Support Provider Service
Performance Logs and Alerts Service
Plug and Play Service
Portable Media Serial Number Service
Print Spooler Service
Protected Storage Service
QoS RSVP Service
Remote Access Auto Connection Manager Service
Remote Access Connection Manager Service
Remote Desktop Help Session Manager Service
Remote Procedure Call (RPC) Service
Remote Procedure Call (RPC) Locator Service
Remote Registry Service
Removable Storage Service
Routing and Remote Access Service
ScriptBlocking Service
Secondary Logon Service
Security Accounts Manager Service
Security Center
Server Service
Shell Hardware Detection Service
Smart Card Service
Smart Card Helper Service
SSDP Discovery Service
System Event Notification Service
System Restore Service
Task Scheduler Service
TCP/IP NetBIOS Helper Service
Telephony Service
Telnet Service
Terminal Services Service
Themes Service
Uninterruptible Power Supply Service
Universal Plug and Play Device Host Service
Upload Manager Service
Volume Shadow Copy Service
WebClient Service
Windows Audio Service
Windows Firewall/Internet Connection Sharing (ICS)
Windows Image Acquisition (WIA) Service
Windows Installer Service
Windows Management Instrumentation Service
Windows Management Instrumentation Driver Extensions
Windows Time Service
Wireless Zero Configuration Service
WMI Performance Adapter Service
Workstation Service
Best Regards