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network service using svchost.exe high cpu (50%) windows 7 sp1 acer 5738

I use BSNL broadband in my acer 5738 with windows 7 sp1. I have avast antivirus.

 For few days my cpu use goes to 30-50% even if I use no software. Using task manager as administrator i see svchost.exe NETWORK SERVICE is using 30-50% CPU. I have scanned with malwarebytes antimalware and eset online scannar and found no virus.

here is a list of services and their status

Name Status   Startup Type Log On As
ABBYY FineReader 10 PE Licensing Service  Manual Local System
Acronis OS Selector activator  Manual Local System
ActiveX Installer (AxInstSV)  Manual Local System
Adaptive Brightness  Manual Local Service
Advanced SystemCare Service Started Automatic Local System
Akamai NetSession Interface Started Automatic Local System
Application Experience Started Manual Local System
Application Identity  Manual Local Service
Application Information Started Manual Local System
Application Layer Gateway Service  Manual Local Service
Application Management  Disabled Local System
avast! Antivirus Started Automatic Local System
Background Intelligent Transfer Service Started Automatic (Delayed Start) Local System
Base Filtering Engine Started Automatic Local Service
BitLocker Drive Encryption Service  Manual Local System
Block Level Backup Engine Service  Manual Local System
Bluetooth Support Service  Manual Local Service
BranchCache  Disabled Network Service
Certificate Propagation  Disabled Local System
CNG Key Isolation Started Manual Local System
COM+ Event System Started Automatic Local Service
COM+ System Application  Manual Local System
Computer Browser  Manual Local System
Credential Manager Started Manual Local System
Cryptographic Services Started Automatic Network Service
DCOM Server Process Launcher Started Automatic Local System
Desktop Window Manager Session Manager Started Automatic Local System
DHCP Client Started Automatic Local Service
Diagnostic Policy Service Started Automatic Local Service
Diagnostic Service Host Started Manual Local Service
Diagnostic System Host Started Manual Local System
Disk Defragmenter  Manual Local System
Distributed Link Tracking Client  Manual Local System
Distributed Transaction Coordinator  Manual Network Service
DNS Client Started Automatic Network Service
EdgeModem Driver Service Started Automatic Local System
Encrypting File System (EFS) Started Automatic Local System
Extensible Authentication Protocol Started Manual Local System
Fax Started Automatic Network Service
Function Discovery Provider Host  Manual Local Service
Function Discovery Resource Publication  Disabled Local Service
Google Software Updater  Manual Local System
Google Update Service (gupdate)  Automatic (Delayed Start) Local System
Google Update Service (gupdatem)  Manual Local System
Group Policy Client Started Automatic Local System
Health Key and Certificate Management  Manual Local System
HomeGroup Listener  Manual Local System
HomeGroup Provider  Manual Local Service
Human Interface Device Access Started Manual Local System
IKE and AuthIP IPsec Keying Modules Started Automatic Local System
Indexing Service Started Automatic Local System
Interactive Services Detection  Manual Local System
Internet Connection Sharing (ICS)  Disabled Local System
IP Helper  Disabled Local System
IPsec Policy Agent Started Manual Network Service
KMService  Manual Local System
KtmRm for Distributed Transaction Coordinator  Manual Network Service
Link-Layer Topology Discovery Mapper  Manual Local Service
Media Center Extender Service  Disabled Local Service
Microsoft .NET Framework NGEN v2.0.50727_X86  Manual Local System
Microsoft iSCSI Initiator Service  Disabled Local System
Microsoft Software Shadow Copy Provider  Manual Local System
Multimedia Class Scheduler  Automatic Local System
Nero Update  Manual Local System
Net.Tcp Port Sharing Service  Disabled Local Service
Netlogon  Disabled Local System
Network Access Protection Agent  Disabled Network Service
Network Connections Started Manual Local System
Network List Service Started Manual Local Service
Network Location Awareness Started Automatic Network Service
Network Store Interface Service Started Automatic Local Service
NLS Service Started Automatic Local System
Office  Source Engine  Manual Local System
Office Software Protection Platform  Manual Network Service
Offline Files  Disabled Local System
Parental Controls  Manual Local Service
Peer Name Resolution Protocol  Manual Local Service
Peer Networking Grouping  Manual Local Service
Peer Networking Identity Manager  Manual Local Service
Performance Logs & Alerts  Manual Local Service
Plug and Play Started Automatic Local System
PnP-X IP Bus Enumerator  Manual Local System
PNRP Machine Name Publication Service  Manual Local Service
Portable Device Enumerator Service  Disabled Local System
Power Started Automatic Local System
Print Spooler Started Automatic Local System
Printer Control Started Automatic Local System
Problem Reports and Solutions Control Panel Support  Manual Local System
Program Compatibility Assistant Service Started Manual Local System
Protected Storage  Manual Local System
Quality Windows Audio Video Experience  Manual Local Service
Remote Access Auto Connection Manager  Manual Local System
Remote Access Connection Manager Started Manual Local System
Remote Desktop Configuration  Manual Local System
Remote Desktop Services  Manual Network Service
Remote Desktop Services UserMode Port Redirector  Manual Local System
Remote Procedure Call (RPC) Started Automatic Network Service
Remote Procedure Call (RPC) Locator  Manual Network Service
Remote Registry  Disabled Local Service
Routing and Remote Access  Disabled Local System
RPC Endpoint Mapper Started Automatic Network Service
Seagate Dashboard Service Started Automatic Local System
Secondary Logon  Manual Local System
Secure Socket Tunneling Protocol Service Started Manual Local Service
Security Accounts Manager Started Automatic Local System
Security Center Started Automatic (Delayed Start) Local Service
Server Started Automatic Local System
ServiceLayer  Manual Local System
Shell Hardware Detection Started Automatic Local System
Smart Card  Disabled Local Service
Smart Card Removal Policy  Disabled Local System
SNMP Trap  Disabled Local Service
Software Protection  Automatic (Delayed Start) Network Service
SPP Notification Service  Manual Local Service
SSDP Discovery Started Manual Local Service
StarWind AE Service Started Automatic Local System
Storage Service  Manual Local System
Superfetch Started Automatic Local System
SwitchBoard  Manual Local System
System Event Notification Service Started Automatic Local System
Tablet PC Input Service  Manual Local System
Task Scheduler Started Automatic Local System
TCP/IP NetBIOS Helper Started Manual Local Service
Telephony Started Manual Network Service
Themes Started Automatic Local System
Thread Ordering Server  Manual Local Service
TPM Base Services  Manual Local Service
TuneUp Theme Extension Started Automatic Local System
TuneUp Utilities Service Started Automatic Local System
UPnP Device Host Started Manual Local Service
UPnPService  Manual Local System
User Profile Service Started Automatic Local System
Virtual Disk  Manual Local System
Volume Shadow Copy  Manual Local System
WebClient  Disabled Local Service
Windows Activation Technologies Service  Manual Local System
Windows Audio Started Automatic Local Service
Windows Audio Endpoint Builder Started Automatic Local System
Windows Backup  Manual Local System
Windows Biometric Service  Automatic Local System
Windows CardSpace  Manual Local System
Windows Color System  Manual Local Service
Windows Connect Now - Config Registrar  Manual Local Service
Windows Defender  Manual Local System
Windows Driver Foundation - User-mode Driver Framework Started Automatic Local System
Windows Error Reporting Service  Disabled Local System
Windows Event Collector  Manual Network Service
Windows Event Log Started Automatic Local Service
Windows Firewall Started Automatic Local Service
Windows Font Cache Service Started Automatic (Delayed Start) Local Service
Windows Image Acquisition (WIA) Started Automatic Local Service
Windows Installer  Manual Local System
Windows Live ID Sign-in Assistant Started Automatic Local System
Windows Management Instrumentation Started Automatic Local System
Windows Media Center Receiver Service  Manual Network Service
Windows Media Center Scheduler Service  Manual Network Service
Windows Media Player Network Sharing Service  Manual Network Service
Windows Modules Installer  Manual Local System
Windows Presentation Foundation Font Cache 3.0.0.0  Manual Local Service
Windows Remote Management (WS-Management)  Disabled Network Service
Windows Search  Disabled Local System
Windows Time  Manual Local Service
Windows Update Started Automatic (Delayed Start) Local System
Windows7FirewallService Started Automatic Local System
WinHTTP Web Proxy Auto-Discovery Service  Disabled Local Service
Wired AutoConfig  Manual Local System
WLAN AutoConfig Started Automatic Local System
WMI Performance Adapter  Manual Local System
Workstation Started Automatic Network Service
WWAN AutoConfig  Manual Local Service

Please help me what should I do?

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Try disabling the "DNS Client" service and observe the performance. This can help especially if you have a large HOSTS file.
______________________________________________________________________________________________________
Ramesh, Windows Shell MVP 2003-2012.
If this post resolves your issue, pls mark it as an Answer.

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Thanks for your reply. However even after disabling DNS client CPU uses for svchost.exe is 30-40%. Any suggestion?

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To find out more about Svchost.exe entries try Process Explorer:
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
SysInternals Forums: http://forum.sysinternals.com/

Once you have Process Explorer installed and running:
In the taskbar select View and check the:
'Show Process Tree' and the 'Show Lower Pane' options.
Move your mouse cursor over any column in the right hand pane and
right click and check the following boxes:
'Command Line' and 'Version'.
(This will provide some of the detailed info you may need)

Next expand the Process tree until 'Services.exe' has been expanded.
Next move the mouse cursor over the Svchost.exe process that you are
interested in. (You should now see a pop up with a list of services
associated with the Svchost.exe you selected)

Note: some Svchost entries may need to be expanded to show the
detail (sub processes), in this case click on the + located to the left of
the entry. Explorer and System/Services also need to be expanded.

Next double click on the Svchost.exe process that you are interested in.
The 'Properties' Window should now be displayed with numerous tabs.
(Two important tabs to look at are: Services and Environment)

Searching for web based information about a process:
Then mouse over the specific process that's you are interested in.
Next click on that process to highlight it,
Now that  it's highlighted, right click and from the options listed select:
Search Online
This should display what out there on the web about that process.

As mentioned before: You can also double click on any process
to open up a more detailed 'Properties' window.

Another tool to try is: What's Running
http://www.whatsrunning.net/whatsrunning/main.aspx

 

J W Stuart: http://www.pagestart.com

Never be afraid to ask. This forum has some of the best people in the world available to help.

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Using process explorer I found that

1. following services are registered to svchost.exe

     CryptSvc, Lanman Workstation, NiaSvc, TapiSrv

2.Information at the lower pane for Svchost.exe

Process: svchost.exe Pid: 1928

Name Description Company Name Version
advapi32.dll Advanced Windows 32 Base API Microsoft Corporation 6.1.7601.17514
apisetschema.dll ApiSet Schema DLL Microsoft Corporation 6.1.7600.16385
atl.dll ATL Module for Windows XP (Unicode) Microsoft Corporation 3.5.2284.0
bcrypt.dll Windows Cryptographic Primitives Library Microsoft Corporation 6.1.7600.16385
bcryptprimitives.dll Windows Cryptographic Primitives Library Microsoft Corporation 6.1.7600.16385
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
catdb   
cfgmgr32.dll Configuration Manager DLL Microsoft Corporation 6.1.7601.17514
clbcatq.dll COM+ Configuration Catalog Microsoft Corporation 2001.12.8530.16385
comctl32.dll User Experience Controls Library Microsoft Corporation 6.10.7601.17514
credssp.dll Credential Delegation Security Package Microsoft Corporation 6.1.7601.17514
crypt32.dll Crypto API32 Microsoft Corporation 6.1.7601.17514
cryptbase.dll Base cryptographic API DLL Microsoft Corporation 6.1.7600.16385
cryptsp.dll Cryptographic Service Provider API Microsoft Corporation 6.1.7600.16385
cryptsvc.dll Cryptographic Services Microsoft Corporation 6.1.7601.17514
devobj.dll Device Information Set DLL Microsoft Corporation 6.1.7600.16385
dhcpcsvc.dll DHCP Client Service Microsoft Corporation 6.1.7600.16385
dhcpcsvc6.dll DHCPv6 Client Microsoft Corporation 6.1.7600.16385
dnsapi.dll DNS Client API DLL Microsoft Corporation 6.1.7601.17570
es.dll COM+ Microsoft Corporation 2001.12.8530.16385
esent.dll Extensible Storage Engine for Microsoft(R) Windows(R) Microsoft Corporation 6.1.7601.17577
FWPUCLNT.DLL FWP/IPsec User-Mode API Microsoft Corporation 6.1.7601.17514
gdi32.dll GDI Client DLL Microsoft Corporation 6.1.7601.17514
hid.dll Hid User Library Microsoft Corporation 6.1.7600.16385
hidphone.tsp Microsoft HID Phone TSP Microsoft Corporation 6.1.7600.16385
hidphone.tsp.mui Microsoft HID Phone TSP Microsoft Corporation 6.1.7600.16385
imm32.dll Multi-User Windows IMM32 API Client DLL Microsoft Corporation 6.1.7601.17514
IPHLPAPI.DLL IP Helper API Microsoft Corporation 6.1.7601.17514
kernel32.dll Windows NT BASE API Client DLL Microsoft Corporation 6.1.7601.17617
KernelBase.dll Windows NT BASE API Client DLL Microsoft Corporation 6.1.7601.17625
KernelBase.dll.mui Windows NT BASE API Client DLL Microsoft Corporation 6.1.7600.16385
kmddsp.tsp TAPI Kernel-Mode Service Provider Microsoft Corporation 6.1.7600.16385
locale.nls   
logoncli.dll Net Logon Client DLL Microsoft Corporation 6.1.7601.17514
lpk.dll Language Pack Microsoft Corporation 6.1.7600.16385
modemui.dll Windows Modem Properties Microsoft Corporation 6.1.7600.16385
modemui.dll.mui Windows Modem Properties Microsoft Corporation 6.1.7600.16385
msasn1.dll ASN.1 Runtime APIs Microsoft Corporation 6.1.7601.17514
msctf.dll MSCTF Server DLL Microsoft Corporation 6.1.7600.16385
msvcrt.dll Windows NT CRT DLL Microsoft Corporation 7.0.7600.16385
mswsock.dll Microsoft Windows Sockets 2.0 Service Provider Microsoft Corporation 6.1.7601.17514
NapiNSP.dll E-mail Naming Shim Provider Microsoft Corporation 6.1.7600.16385
ncsi.dll Network Connectivity Status Indicator Microsoft Corporation 6.1.7601.17514
ndptsp.tsp NDIS Proxy TAPI Service Provider Microsoft Corporation 6.1.7600.16385
netjoin.dll Domain Join DLL Microsoft Corporation 6.1.7601.17514
netutils.dll Net Win32 API Helpers DLL Microsoft Corporation 6.1.7601.17514
nlaapi.dll Network Location Awareness 2 Microsoft Corporation 6.1.7601.17514
nlasvc.dll Network Location Awareness 2 Microsoft Corporation 6.1.7601.17514
nsi.dll NSI User-mode interface DLL Microsoft Corporation 6.1.7600.16385
ntdll.dll NT Layer DLL Microsoft Corporation 6.1.7601.17514
ole32.dll Microsoft OLE for Windows Microsoft Corporation 6.1.7601.17514
oleaut32.dll  Microsoft Corporation 6.1.7601.17567
pnrpnsp.dll PNRP Name Space Provider Microsoft Corporation 6.1.7600.16385
propsys.dll Microsoft Property System Microsoft Corporation 7.0.7601.17514
psapi.dll Process Status Helper Microsoft Corporation 6.1.7600.16385
rasadhlp.dll Remote Access AutoDial Helper Microsoft Corporation 6.1.7600.16385
rpcrt4.dll Remote Procedure Call Runtime Microsoft Corporation 6.1.7601.17514
RpcRtRemote.dll Remote RPC Extension Microsoft Corporation 6.1.7601.17514
rsaenh.dll Microsoft Enhanced Cryptographic Provider Microsoft Corporation 6.1.7600.16385
rtutils.dll Routing Utilities Microsoft Corporation 6.1.7601.17514
samcli.dll Security Accounts Manager Client DLL Microsoft Corporation 6.1.7601.17514
samlib.dll SAM Library DLL Microsoft Corporation 6.1.7600.16385
sechost.dll Host for SCM/SDDL/LSA Lookup APIs Microsoft Corporation 6.1.7600.16385
secur32.dll Security Support Provider Interface Microsoft Corporation 6.1.7601.17514
setupapi.dll Windows Setup API Microsoft Corporation 6.1.7601.17514
setupapi.dll.mui Windows Setup API Microsoft Corporation 6.1.7600.16385
shell32.dll Windows Shell Common Dll Microsoft Corporation 6.1.7601.17514
shlwapi.dll Shell Light-weight Utility Library Microsoft Corporation 6.1.7601.17514
snxhk.dll avast! snxhk AVAST Software 6.0.999.0
SortDefault.nls   
ssdpapi.dll SSDP Client API DLL Microsoft Corporation 6.1.7600.16385
sspicli.dll Security Support Provider Interface Microsoft Corporation 6.1.7601.17514
svchost.exe Host Process for Windows Services Microsoft Corporation 6.1.7600.16385
svchost.exe.mui Host Process for Windows Services Microsoft Corporation 6.1.7600.16385
tapisrv.dll Microsoft® Windows(TM) Telephony Server Microsoft Corporation 6.1.7601.17514
tapisrv.dll.mui Microsoft® Windows(TM) Telephony Server Microsoft Corporation 6.1.7600.16385
unimdm.tsp Unimodem 5 Service Provider Microsoft Corporation 6.1.7601.17514
unimdm.tsp.mui Unimodem 5 Service Provider Microsoft Corporation 6.1.7600.16385
unimdmat.dll Unimodem Service Provider AT Mini Driver Microsoft Corporation 6.1.7601.17514
unimdmat.dll.mui Unimodem Service Provider AT Mini Driver Microsoft Corporation 6.1.7600.16385
uniplat.dll Unimodem AT Mini Driver Platform Driver for Windows NT Microsoft Corporation 6.1.7600.16385
user32.dll Multi-User Windows USER API Client DLL Microsoft Corporation 6.1.7601.17514
usp10.dll Uniscribe Unicode script processor Microsoft Corporation 1.626.7601.17514
version.dll Version Checking and File Installation Libraries Microsoft Corporation 6.1.7600.16385
vssapi.dll Microsoft® Volume Shadow Copy Requestor/Writer Services API DLL Microsoft Corporation 6.1.7601.17514
vsstrace.dll Microsoft® Volume Shadow Copy Service Tracing Library Microsoft Corporation 6.1.7600.16385
vsstrace.dll.mui Microsoft® Volume Shadow Copy Service Tracing Library Microsoft Corporation 6.1.7600.16385
webio.dll Web Transfer Protocols API Microsoft Corporation 6.1.7601.17514
wevtapi.dll Eventing Consumption and Configuration API Microsoft Corporation 6.1.7600.16385
winhttp.dll Windows HTTP Services Microsoft Corporation 6.1.7601.17514
winmm.dll MCI API DLL Microsoft Corporation 6.1.7601.17514
winnsi.dll Network Store Information RPC interface Microsoft Corporation 6.1.7600.16385
winrnr.dll LDAP RnR Provider DLL Microsoft Corporation 6.1.7600.16385
wintrust.dll Microsoft Trust Verification APIs Microsoft Corporation 6.1.7601.17514
wkscli.dll Workstation Service Client DLL Microsoft Corporation 6.1.7601.17514
wkssvc.dll Workstation Service DLL Microsoft Corporation 6.1.7601.17514
Wldap32.dll Win32 LDAP API DLL Microsoft Corporation 6.1.7601.17514
WLIDNSP.DLL Microsoft® Windows Live ID Namespace Provider Microsoft Corp. 7.250.4225.0
ws2_32.dll Windows Socket 2.0 32-Bit DLL Microsoft Corporation 6.1.7601.17514
wshbth.dll Windows Sockets Helper DLL Microsoft Corporation 6.1.7601.17514
wship6.dll Winsock2 Helper DLL (TL/IPv6) Microsoft Corporation 6.1.7600.16385
wshqos.dll QoS Winsock2 Helper DLL Microsoft Corporation 6.1.7600.16385
WSHTCPIP.DLL Winsock2 Helper DLL (TL/IPv4) Microsoft Corporation 6.1.7600.16385

 

Please help me someone, how can I reduce high CPU use...

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Well, finally get rid of the problem myself.............

I have used PC Tools Performance Toolkit  V1.0.1 and it has a option tune up your services. I just hit recommended services and the high cpu use problem is solved..............

Thanks to PC Tools Performance Toolkit.

 

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The problem was solved by switching of Pandora (TV) service (.exe), a file installed by KMPlayer.
It had two components running and I was able to switch them both of with end task with the taskmanager. After that the service host: local service (no network) (4) which uses svchost according to process explorer that used about 50% of my CPU disappeared from taskmanager.
Almost bought a new computer over this. Hope this solves it for some people.

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open taskmanager end svchost.exe network!

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Try disabling the "DNS Client" service and observe the performance. This can help especially if you have a large HOSTS file.

Deleting all the entries except 127.0.0.1 localhost fixed the issue for me. I had tens of thousands of entires.

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Try disabling the "DNS Client" service and observe the performance. This can help especially if you have a large HOSTS file.

Deleting all the entries except 127.0.0.1 localhost fixed the issue for me. I had tens of thousands of entires.

Thanks for the update!

______________________________________________________________________________________________________
Ramesh, Windows Shell MVP 2003-2012.
If this post resolves your issue, pls mark it as an Answer.

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kills it temporarily, yet it comes back to life again, any idea of permanently putting it down?

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Question Info

Last updated February 7, 2023 Views 114,213 Applies to: