why do i have 16 instances of svchost running

July 30, 2011 at 10:19:23
Specs: Windows Vista
No wonder I keek getting high memory usage errors. I've just checked my PC and there appears to be 16 versions of svchost all running at the same time. Any ideas?

See More: why do i have 16 instances of svchost running

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July 30, 2011 at 14:15:54
That's quite normal; nothing to worry about.

Your errors are down to something else. Where do these errors occur, what is the exact message, and how much RAM do you have?

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July 31, 2011 at 11:53:03
I've 1Gig RAM and running Vista. I will make a note of the pop up text next time it occurs. Though it's usually when I'm on the web. I never play games, and only use the web to look at email, have the occasional chat on facebook, and do a bit of research and price checking. I do have Norton. One other factor is that I use my house TV as a monitor. When I first installed it I couldn't read the screen as the words were too small and blurred, and I was advised to buy an ATI Graphics Accelerator driver.

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July 31, 2011 at 19:32:24
Also may I ask, do all of the svchost processes spelled that way, or are some spelled scvhost? Ones spelled scvhost could possibly be hidden viruses. Check it out.

Ask and Answer. The way of learning.
But ask first the right way to succeed.

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August 1, 2011 at 19:32:58
svchost.exe (Generic Host Process for Win32 Services) is a generic Microsoft "slave" program that is commonly used by other programs.
You can have many instances of it running at the same time.
If you want to find out which programs are using each instance of svchost.exe , download Process Explorer from the Microsoft web site , installl it, run it.
If you don't know what the programs it finds that are usuing svchost.exe are for, search the web with their names.

SCVHOST is always MALWARE (most malware these days is NOT a virus).
If you see SCVHOST.EXE, do a Full scan of your computer with whatever anti-malware programs you have.

You would benefit from installing more ram. 1gb is meagre for Vista.

When you look at the Task Manager Processes list, click on CPU at the top of the CPU column twice - the processes will then be listed with the one that is using the most CPU percentage first, the others in descending order.

If you see nothing obvious that accounts for the high % usage at the bottom of the Task Manager Window, ,it could be your Windows partition - C- is too full - it should have at least about 10% free space - or the computer may have malware - .do a Full scan of your computer with whatever anti-malware programs you have - if that doesn't help , download the free version of Malwarebytes, install it, run a Full scan.

"One other factor is that I use my house TV as a monitor. When I first installed it I couldn't read the screen as the words were too small and blurred, and I was advised to buy an ATI Graphics Accelerator driver."

That has nothing to do with the high % usage.

If the TV does not have a VGA, DVI, or HDMI input port, TV Out video (a S-Video or composite video connection) on the TV never looks as good as it does on your monitor because the video must be processed through a chip on the computer's video adapter so that it conforms to the much older legacy TV display standards.

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August 2, 2011 at 15:47:39
I was brought up when 16mb was huge RAM. But if you say 1gb is minimal, I'll get some more.

Whenever my PC is on I can hear it chuntering to itself

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August 2, 2011 at 15:51:25
Thanks bud. Very helpful. Will get some more RAM. Currently run the TV monitor through a HDMI connection.

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August 2, 2011 at 19:32:02
" I was brought up when 16mb was huge RAM."

I started using computers for the first time in about 1988, my Dad's Sanyo 286, 12mhz, ~30mb RLL hard drive, 1 mb of ram, Dos 3.0..
Sound cards and 1.44mb floppy drives were new things - Dad paid over $100 for a 1.44mb floppy drive, we got a first generation SB sound card at least a year later.
Most people including us didn't have more than 1mb until after Win 3.1 was released in 1992.
It wasn't long after that 4mb was a huge amount of ram, and it cost over $100 a mb.

Tell us the make and model of your brand name system, or if you have a generic desktop system, tell us the make and model of the mboard and the speed of your cpu.

1gb is the recommended minimum for Vista for anything but Vista Basic.

Windows Vista system requirements

If you're familar with XP, it's like having 256mb with XP.
Windows just barely runs as it was designed to.
If your computer is relatively slow, it's more obvious you don't have enough ram.

Computer memory requirements: How much memory do you need?

Ultimate Memory Guide
How Much Memory Do You Need?

"Whenever my PC is on I can hear it chuntering to itself"

Chuntering ?

If you mean it sounds like there is a lot of hard drive activity, that's a symptom of

- you don't have enough free space on the C partition - you should have at least about 10% free space, otherwise Window's page file (swap file) on that partition is sometimes or always not big enough , data must be swapped onto and off of the page file a lot more often, you hear more hard drive activity, and Windows won't be able to run as fast as it is capable of otherwise with your system.

- or - you re-installed Windows but did not load the main chipset drivers for the mboard after Setup was finished - if your mboard is newer than when Vista was first released, it's likely Vista does not have the proper info about the main chipset's capabilities, or if the mboard is older but Vista has no built in support for the main chipset, and in both cases your drives will probablty not run as fast as they are capable of, untill AFTER you have installed the main chipset drivers.

- or - you don't have enough ram - e.g. when you load several programs in addition to what loads when Windows first loads, eventually the available ram amount is a lot closer to being used up, Windows runs much slower, there is more hard drive activity. In that case, the hard drive activity and slowness is directly proportional to the load of the programs you load yourself, and the load of programs that are running in the background.

E.g. Windows Update and many anti-malware programs download updates in the background , and some anti-malware programs are set by default when you install them to scan the whole C dfrive or all the hard drive partitions in the background every so often. They're usually supposed to do that at a specified time, but if the computer wasn't running at that time, it updates or scans not long after you start up Windows the next time Windows is running, which is often the first time you start up Windows the next day, which places a lot more load on the computer for a while after it is first started.

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August 3, 2011 at 11:43:39
Tubes, Your realy helpful. I'm in the UK. My system is:

Manufacturer: Fujitsu siemens, Scaleo
Model: P4m-915gd1-lf
OS: Windows Vista Home Premium
CPU/Ram: 3 GHz / 1022 MB
Video Card: ATI Radeon HD 4300/4500 Series
Sound Card: High Definition Audio Device High Definition Audio Device Philips SAA713X, Hybrid Capture Device
I've 3 gb HD of which 2.5 is free.
I also have a 1TB external drive.
I try to only use the internal HD for software, and files & work fo on the external.

I did have a lot of trouble originally loading Vista and I ended up with 4 versions on my HD. Windows, Wondows.old.001, Windows. old. 002, etc. I've been gradually deleting the old versions, but it takes so long, I only get round to it occasionally.

My 1st PC was a 1mb Sinclair, (there's a hint in my screen name) that I had to attact an external casette tape to. I learned Basic (now forgotten), and made some stupid 'bat and ball' games.
If you do come up with any other ideas and I don't immediately respond. Its only because I am going to a wedding in Italy - and some sun.

Cheers again

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August 4, 2011 at 08:26:59
"I'm in the UK."

I'm in Canada, in Alberta, the next time zone east of where this web site is (1 hour ahead)..

"Manufacturer: Fujitsu siemens, Scaleo
Model: P4m-915gd1-lf"

I've needed to navigate the Fujitsu Siemens web sites before, and I know it isn't as easy to find info as on most brand name system web sites.

Searching with P4M-915GD1-LF finds nothing there.

P4M-915GD1-LF is the mboard model, not the Fujitsu Siemens model

Go here for how to find the Fujitsu Siemens specific system Serial number, and quote that here.

Identification number or serial number


"CPU/Ram: 3 GHz / 1022 MB"

If 1022mb is not a typo, the mboard's bios is subtracting 2mb - it subtracting 1mb is more common, for the conventional memory amount the operating system can't make available to the user.

"Video Card: ATI Radeon HD 4300/4500 Series"

Since you have most of 1gb - 1024mb - available, that must be on a video card in a mboard slot.

"OS: Windows Vista Home Premium"
"I've 3 gb HD of which 2.5 is free."

That doesn't make sense.

I recently installed Windows Vista Home Premium, and after all Windows updates and SP1 and SP2 updates had been loaded, over 14 gb had been used - I hadn't installed anything else yet. .

Something such as "I've 300 gb HD of which 250 is free" is possible.

Is it SATA or IDE ?

"I also have a 1TB external drive.
I try to only use the internal HD for software, and files & work fo on the external."

If the external hard drive is connected via a USB or firewire connection, it's max data transfer speed is determined by the circuits of the hard drive enclosure, not the hard drive within it, and that's pitiful in comparison to that of an internally connected drive.
You are much better off to install a larger hard drive internally

"I did have a lot of trouble originally loading Vista and I ended up with 4 versions on my HD. Windows, Wondows.old.001, Windows. old. 002, etc. I've been gradually deleting the old versions, but it takes so long, I only get round to it occasionally."

What are the details of the trouble ?

Do you have the multi boot menu when you boot the computer, 4 Vista installations to choose from ?

You can probably delete the entire Vista partitions that don't work, in Disk Management in Windows, and make new ones, or you can do procedures that will add their space to the Vista partition that works.

The motherboard - identical to this, or almost identical to this...

FIC P4M-915GD1 (home support page)


".....motherboard for their next mini-desktop".

Processor 533/800MHz FSB / Intel® Pentium® 4 Processor w / HT Technology

Chipset Intel® 915G Express Chipset / Intel® ICH6/R

Memory 4 DIMM slot / DDR 400/333 SDRAM support / Max. 4G total

Audio Azalia 8 Channel / Realtek ALC880

Serial Ata Intel ICH6/R, 4 ports (Support RAID 0,1)

Onboard Lan Realtek 10/100/1000 Mbps

Expand Slots 3 PCI / 1 PCI Express x16

Onboard IO 1 Parallel port / 2 PS2 Connectors / 1 (1 x RJ45 + 2 x USB 2.0) / 1 VGA port / 2 com port (1 pinheader) / 2 x Audio connectors : Mic-In, Line-In, Line-Out / 8 USB 2.0

Onboard IDE 6 Dual-Channeled Enhanced PCI Bus Master IDE Connectors Support Ultra DMA ATA 66/100

System Bios ACPI, APM, DMI, SMBIOS, PnP, USB, PC99, PC2001, Y2K Compliant

Form Factor uATX - 9.6" x 9.6"

IEEE1394 VIA6307L 2 Ports (option)

Video 1 X PCI Express x16 slot



Intel® 915G Express Chipset

Intel 915G Graphics and memory controller

Integrated Graphics Yes

So - the mboard has onboard video available.


More later.

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August 4, 2011 at 12:51:10
I found a post on the web that mentioned a Serial number - YSSD010531 - that can be used to look up info or downloads for a Scaleo model on the Fujitsu Siemens web site that has the P4m-915gd1-lf motherboard model..
Your mini desktop computer is probably very similar.

E.g. I used YSSD010531 here:

Note - many pages there where you provide the Serial number, including that one, are oddball web pages.
You need to click once on the center part of the page in order to be able to scroll in the center part of the page, e.g. by using the keyboard cursor down or up keys.

Product: SCALEO E /P4 524/BB SCALEO E/MEM 1024MB/
Identification number: YSSD010531

I downloaded and looked at the SCALEO E User's manual


"as of oct 2005"
So your computer was probably made in 2005, maybe 2006.

"XP MCE 2005"
Your computer probably ran Windows very well with MCE 2005 with 1gb of ram.

"Rated input current (...details on the label at the rear of the unit)"
(at 120v / 240v AC)
"5A / 3A
6A / 3A"

If you see one of those same ratings on the label at the rear of the unit, if you still have the original power supply, you have a LOW CAPACITY POWER SUPPLY !
(Low wattage capacity)

Excellent power supplies have a 80% efficiency or better (no more than ~ 85%), as in, the max total power output is 80% or better of the power it draws from the AC source.
Yours may not be an excellent power supply.

E.g. I have a (max combined DC output) 235 watt continuous (260 watts Peak -intermittent) - power supply sitting here, and it draws a max 4.5A from a 240v AC source - it's probably not 80% efficient or better.
Yours draws 3A (3 amps)!

ATI Radeon™ HD 4300 Series System Requirements
ATI Radeon™ HD 4550 Graphics System Requirements

300 Watt or greater power supply (350 Watt for ATI CrossFireX™ technology in dual mode) is recommended.

Your ATI 4300 or 4500 series video card requires your system has a recommended 300 watt power supply - you may be able to get away with, say, 50 watts less, but it's likely the PS capacity is under 200 watts !
It's likely you will end up with a dead original power supply if you continue to use the ATI 4300 or 4500 series card !

You could confirm the max (combined output) wattage of the PS by reading the label on it.
OR - once you have provided your specific system Serial number I may be able to find the power supply rating.

Sometimes when you search the web with either the brand name system maker's part number for the PS, or with the brand and model of the PS, you can find a physically compatible PS that has more wattage capacity .


Fujitsu Siemens Scaleo E
A bulky, yet versatile Media Center PC designed to fit under a TV

Page 2


"The 250GB hard disk....."

Yours may have originally had a different hard drive size, but it certainly wouldn't be under 80gb or so.

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