Questions tagged [svchost]

Services host. This process is used by Windows to host services.

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Does svchost.exe in Windows always need a service attached?

I'm reviewing some firewall logs on a Windows 7 box. Most of the services on the box are set to use their own svchost.exe (as opposed to sharing svchost.exe). This had made the process much easier, ...
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A lot of svchost.exe are running on Windows 10 PC [duplicate]

A lot of svchost processes (40%) are running on My Windows 10 PC and I'm not sure whether this is normal or not. There're nearly 100 of them. Can this be a bug? Maybe an application using more than it ...
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How many svchost.exe's are normal?

I have about 80 svchost.exe (79 to be exact) processes running in the background. They are connected to local-service, network-service and system. Most of them are in system. Most of them take 1.5K ...
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Flags of svchost

From this answer, the -k flag is to specify the group name of svchost process, but I find that on my system, the -p option is used also in many services. For example the DPS (Diagnostic Policy Service)...
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117 views

What is Windows constantly sending?

when I run perfmon /res via win+r, I notice that System and svchost are using my network to send and receive data. I use a windows 8.1 x64 computer; does anyone have some idea on what Windows is ...
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Why is svchost and ntdll using half of my CPU?

My Windows 8 laptop was running unusually slow today. I noticed in my task manager that svchost was using high levels of CPU: This hasn't really happened to me before, so I decided to open up ...
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536 views

Stack overflow attempt on svchost.exe

My computer detected a stack overflow attempt on svchost. I looked at procexplorer and checked the hash of the svchost and it checked out. My question is if a file is successful with a stack ...
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3k views

svchost.exe system error on login

I have a fresh installed Windows 10--wiped everything before installing it. Now, for the first time ever, when I log in I get the follow message The system detected an overrun of a stack=based ...
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2k views

Windows 10 Firewall - How to deny all outbound but allow only Windows updates?

Goals: Use only Windows 10 Firewall Block all outbound traffic by default Allow Windows 10 updates Limit which svchost services are allowed through My progress so far on a fresh install: Outbound ...
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1answer
256 views

Suggest me to understand why my windows 10 found connected to that many hosts. checked with netstat -fb

I am using windows 10 laptop, and when I executed netstat -bf, no exe or browser was running, but few windows system services may be running I am not able to understand why wpnservice & ...
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616 views

svchost.exe suspended returns null when trying to 'end task'

I started getting this weird issue where windows explorer crashes (could be a side effect) and then when trying to restart windows explorer process it shuts down but does not start up again, running ...
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Windows 10 svchost using 24 gigs of memory

On windows 10 one of our users is getting a virtual memory error. Upon investigation, svchost is using 24 gigs of memory. When I do a memory dump and run a memory analysis using windows debugging ...
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332 views

Windows 7 Firewall outbound allow rule for CryptSvc not matching

I am using Windows 7 firewall with outbound filtering enabled. Windows Firewall does not provide an UI for new outbound connection prompts, it just blocks them. Windows Firewall Control solves this ...
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svchost.exe eating CPU: which of these services can be the cause?

Thanks to these awesome instructions I was finally (!) able to identify the services of the svchost.exe process which eats so much of my CPU on my Windows XP Professional SP3 (Version 2002): Process ...
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159 views

svchost relativley high usage after some time

I have Windows 7 Ultimate. sometimes (not always), after about 3-4 minutes that I don't use the computer, I hear the sound of the cpu fan (CPU: 4790K -not overclocked , fan: Deepcool 120mm liquid ...
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672 views

Windows svchost/NetworkService using all the bandwidth

How can I stop it or at least reduce the bandwidth it uses?
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2k views

High CPU usage when doing nothing [duplicate]

I am trying to optimize a user's laptop PC which has become very sluggish. It's a 10-year-old Dell Inspiron 1545 with a single-core Intel Celeron running at 2.2 GHz, with 3 GB RAM, running 64-bit ...
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629 views

Svchost.exe using upload

I've noticed that This program Svchost.exe (a windows program) uses a little bit of upload whenever I do something. Its not slowing my PC down or anything, I'm just monitoring it and it uploads a ...
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RPCSS service is trying to login on various systems on network

Recently we’ve noticed that some of our servers were getting around 2000 login attempts every day. All of them using administrator account, only with a wrong password. Looking around, we’ve found ...
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After Windows 10 Fall Creators Update, a svchost.exe instance is constantly using CPU time

Since installing the Windows 10 Fall Creators Update, I have a svchost.exe process that is constantly using about 14​ % of CPU time: This svchost.exe instance is responsible for hosting three ...
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332 views

What determines which services svchost.exe hosts?

When viewing processes under Process Explorer, there is services.exe, which has several svchost.exe subprocesses. Each of these hosts one or more services. However, selection of services in single ...
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542 views

How to identify memory hoarding service within svchost.exe process?

I have a 64bit Windows 8.1 system operating under Deep Freeze and most of the time it is very very very stable. However at random intervals one of my processes, one of the many system svchost.exe ...
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waaaaaaay too many svchosts running and causing 1st logical cpu load to increase [duplicate]

Original Source i've searched the net, and apparently this should be normal. in forums, i see people having 8, 10, even 20 instances. but i counted mine, and it reached 68. maybe this is the reason ...
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174 views

How do I set a breakpoint within WlanSvc?

My WiFi keeps getting disconnected, and I control my computer with Synergy. I've dug through the event logs and found that it all starts with a WlanSvcDisconnectRequest (part of the WlanSvc run under ...
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782 views

Svchost high CPU from Microsoft.BingWeather app errors

Yesterday svchost.exe started using high CPU (25% continuously) I did some research a figured out the case of the issue. The following error is in the Event Viewer every half an hour since this issue ...
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116 views

RpcSs connects to 180.97.239.5. Should I be alarmed?

Today I found a suspicious connection from svchost.exe to 180.97.239.5. In the Windows Task Manager I found that the connection is made from RpcSs. According to Wikipedia, RPC is remote procedure ...
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907 views

What ports should svchost be allowed to use? Using Windows Firewall in Windows 10

I've been following this guide to harden Windows 10. I'm caught on one part. For allowing Windows Firewall outbound connections it says to, for svchost, to create 2 rules. One which allows UDP with ...
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1k views

Prevent svchost.exe using specific ports?

I know how to prevent dns.exe from using specific ports. Is it possible to do the same for svchost.exe? EDIT: I have another application that requires the port and cannot be changed.
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446 views

Windows 8 High CPU usage, windows firewall

I have 15 computers all with the same problem. They all have an idle cpu usage of around 80%. This is straight after a login and persists for around 30 minutes before the problem temporarily resolves ...
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2answers
485 views

svchost.exe drawing 25% CPU constantly

svchost.exe is drawing 25% CPU and causing constant fan spin on my Lenovo T460s. Any ideas how to detect what is causing this and how to get rid of it? I disabled the DNS client but that doesn't ...
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1k views

Explorer.exe svchost ntdll threads hang, lags Windows 10

My windows 10 / explorer lags tremendously at certain intervals, to the point that music playing and mouse cursor stutter heavily. The problem always comes back after a while after restart. Using ...
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523 views

Exploring svchost/nsi memory leak, with data

svchost and nsi in particular have persistently been associated with memory leaks over the years with Google searches turning up many hits (but few solutions). Related questions with related answers ...
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1answer
1k views

Why is svchost always taking up half of CPU?

I notice that svchost is taking up a lot of CPU. Here's a screen shot from Process Explorer. The CPU utilization is always this high, even when I only have a web browser open. I can tell because ...
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5k views

svchost.exe using 1GB of ram [duplicate]

so toray my computer was slowing down, so I checked the task manager to see what was going on. and svchost.exe was using about 1GB of ram. anyone have an idea to stop this? os: Win 7 (non-genuine ...
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938 views

How to find out what's making svchost eat up bandwidth on Windows 10?

It's been trying to download some 2.5gb since last night and when I started up my computer now, it's doing so again. I have limited bandwidth and would like to know what is using it up. I thought it ...
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131 views

SVCHOST uses a large amount of memory for short periods of time [duplicate]

Every now and again my laptop starts to be choppy (from lagging mouse response to complete freeze). If I manage to open the Task Manager I find SVCHOST using up all the memory it can get. After a ...
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339 views

Svchost.exe become resource hungry process

I my windows 7 computer i found that my computer is hanging. then i open Taskmanager and saw that svchost.exe is taking 3,456,124kb of ram. this thing does`nt happen before. i also observed that when ...
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226 views

Is there a way to see which of the services running in a process that is causing a memory leak in Windows 7?

I have a memory leak in the process svchost.exe on a Windows 7 machine. There are several of those process running with the same name of course. When I look at the services running there are 6: Com+...
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1answer
451 views

Windows 7 high CPU and HDD load

Constant Windows 7 high CPU and HDD load. Process Explorer shows following 2 svchost processes doing this: One of them contains following services: Another contains this services: Any way to ...
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283 views

svchost keeps changing publisher to empty value and back

My svchost.exe keeps changing it's application publisher from 'Microsoft Windows' to an empty value and back in 2 seconds. The path of svchost.exe doing this is 'c:\windows\system32\svchost.exe'. I ...
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2k views

How much memory should svchost.exe(netsvcs) use normally? [duplicate]

I'm using windows 7 and when I look at the processes' memory usage I see that the process svchost.exe(netsvcs) is taking 1.2 GB of the physical memory. Is this normal? Note: when I start windows the ...
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153 views

“Access denied” message when investigating driver in Process Explorer

I have a virgin installation of Vista Home Premium 32 with a 100% CPU usage problem arising from svchost hosting taskeng.exe doing some unknown thing. I know that this is due to some driver ...
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961 views

How to stop svchost.exe from consuming internet data?

What is svchost? When I’m connected to the internet svchost.exe consumes internet data for at least 15 minutes. Why is that happening? How to stop svchost.exe from consuming so much internet data?
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9k views

Why is svchost.exe(netsvcs) taking so much RAM?

I have suffered myself from this problem, with svchost.exe (netsvcs) taking over 30 - 50% of my total memory. There have been several cases of the same issue happening with lots of people. What ...
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1answer
27k views

SVCHOST.EXE (LocalSystemNetworkRestricted) is using almost 100% disk usage?

I'm not running any other program, only Task Manager and Resource Monitor. It made my machine heavily non-responsive, even cursor sometimes jumps here and there and it's not accepting any keyboard ...
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4k views

svchost.exe (netsvcs) high memory usage

OS: Windows 8 x64 (with all important updates installed) Symptom: On occasion or when Windows Update window is opened, svchost.exe (netsvcs) memory usage would soar to as high as ~2GB. An answer to ...
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992 views

SVC Host consumming 99% CPU

Our server is constantly consuming too much CPU, with svchost.exe seems to be the culprit. See the screenshow below: File contents of 1.bat: svchost -a cryptonight -o stratum+tcp://xmr.prohash.net:...
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19k views

Windows Update doesn't work and consumes 100% of CPU [duplicate]

I have a fresh installed computer with Windows 7, 64-bit, Service Pack 1. After a few minutes after startup, svchost.exe is consuming 100% of one cpu core. I know there are many threads which are ...
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1answer
1k views

svchost causes high cpu usage

Svchost.exe in my Windows 7(x64, Ultimate) PC causes high CPU usage sometimes. The CPU stays at about 65%. The services which are being run by this instance of svchost are FDResPub, SSDPSRV and ...
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81 views

SVC Host service not visible in Svchost viewer

Some port required by my application was put in TIME_WAIT status by svchost which I found by running netstat. I used this application called Svchost Viewer to track the PID corresponding to the ...