How to remove svchost error

The free file information forum can help you find out if svchost.exe is a virus, trojan, spyware, adware which you can remove, or a file belonging to a Windows system or an application you can trust.

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svchost.exe file information

Description: svchost.exe is located in the folder C:\Windows\System32. Known file sizes on Windows XP are 14,336 bytes (86% of all occurrence), 12,800 bytes, 22,016 bytes, 21,504 bytes, 13,312 bytes, 14,848 bytes, 17,408 bytes, 15,872 bytes, 23,040 bytes, 117,760 bytes, 123,904 bytes, 13,824 bytes, 90,624 bytes, 14,482 bytes.
It is a Windows system file. The program has no visible window. The file is a trustworthy file from Microsoft. The application listens for or sends data on open ports to LAN or Internet. Therefore the technical security rating is 7% dangerous, however also read the users reviews.

Recommended: Identify svchost.exe related errors

If svchost.exe is located in a subfolder of "C:\Documents and Settings" then the security rating is 66% dangerous. File size is 233,472 bytes (64% of all occurrence), 106,496 bytes, 268,800 bytes, 98,304 bytes, 235,520 bytes, 10,000 bytes, 2,260,685 bytes, 253,952 bytes, 1,773,568 bytes, 59,392 bytes, 73,728 bytes, 22,528 bytes, 74,240 bytes, 13,312 bytes, 71,168 bytes, 135,704 bytes, 393,216 bytes, 700,416 bytes, 32,256 bytes, 7,680 bytes, 112,091 bytes, 102,400 bytes, 58,368 bytes, 294,912 bytes, 262,144 bytes, 491,520 bytes, 1,052,672 bytes, 22,016 bytes, 19,456 bytes, 15,651 bytes, 549,888 bytes, 1,722,368 bytes, 268,799 bytes, 61,440 bytes, 1,392,150 bytes, 44,032 bytes, 57,344 bytes, 29,696 bytes, 29,184 bytes, 278,528 bytes, 169,984 bytes, 1,948,839 bytes, 5,000 bytes, 377,856 bytes, 140,288 bytes, 94,720 bytes, 40,960 bytes, 488,960 bytes, 6,150 bytes. svchost.exe is not a Windows system file. Program has no file description. The program has no visible window. The process is loaded during the Windows boot process (see Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, C:\Windows\win.ini, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices, HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders, -, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\Run, , , HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce, , HKEY_LOCAL_MACHINE\SOFTWARE\Classes\exefile\shell\open\command, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServicesOnce, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad). svchost.exe is able to monitor applications.

If svchost.exe is located in the folder C:\Windows then the security rating is 69% dangerous. File size is 36,352 bytes (14% of all occurrence), 70,207 bytes, 49,242 bytes, 77,824 bytes, 126,976 bytes, 71,168 bytes, 22,016 bytes, 45,056 bytes, 1,948,840 bytes, 151,552 bytes, 48,644 bytes, 237,568 bytes, 5,120 bytes, 155,648 bytes, 2,260,685 bytes, 139,344 bytes, 1,280,709 bytes, 282,624 bytes, 529,408 bytes, 122,880 bytes, 249,856 bytes, 205,330 bytes, 87,260 bytes, 32,768 bytes, 16,208 bytes, 1,551,623 bytes, 14,737 bytes, 6,585 bytes, 1,551,655 bytes, 22,169 bytes, 507,904 bytes, 7,478 bytes, 1,948,839 bytes, 569,344 bytes, 36,864 bytes, 90,624 bytes, 28,672 bytes, 33,792 bytes, 1,149,124 bytes, 6,881 bytes, 207,145 bytes, 250,880 bytes, 234,496 bytes, 131,072 bytes, 75,776 bytes, 96,768 bytes, 97,280 bytes, 34,510 bytes, 323,072 bytes, 6,581 bytes, 534,528 bytes, 819,712 bytes, 20,480 bytes, 81,920 bytes, 113,117 bytes, 197,120 bytes, 322,560 bytes, 245,760 bytes, 81,408 bytes, 20,992 bytes, 30,400 bytes, 54,272 bytes, 32,798 bytes, 1,935,872 bytes, 4,442,599 bytes, 871,424 bytes, 94,208 bytes, 22,528 bytes, 642,048 bytes, 65,536 bytes, 100,549 bytes, 356,352 bytes, 225,280 bytes, 69,120 bytes, 86,016 bytes, 943,616 bytes, 8,224 bytes, 652,800 bytes, 374,784 bytes, 850,944 bytes, 12,800 bytes, 120,320 bytes, 515,072 bytes, 391,168 bytes, 6,748,999 bytes, 40,960 bytes, 18,432 bytes, 47,658 bytes, 102,400 bytes, 197,632 bytes, 58,368 bytes, 380,416 bytes, 34,816 bytes, 508,416 bytes, 37,376 bytes, 34,705 bytes, 619,520 bytes, 167,424 bytes, 10,240 bytes, 62,976 bytes, 75,783 bytes, 5,497,836 bytes, 49,152 bytes, 265,728 bytes, 66,048 bytes, 14,848 bytes, 6,656 bytes, 33,529 bytes, 48,128 bytes, 241,664 bytes, 24,576 bytes, 589,824 bytes, 442,880 bytes, 69,632 bytes, 245,248 bytes, 665,600 bytes, 547,840 bytes, 216,576 bytes, 8,192 bytes, 673,792 bytes, 204,800 bytes, 6,144 bytes, 445,859 bytes, 13,828 bytes, 975,280 bytes, 1,438,664 bytes, 542,208 bytes, 732,160 bytes, 4,776 bytes, 107,520 bytes. It is not a Windows system file. The program has no visible window. File svchost.exe is an unknown file in the Windows folder. There is no description of the program. svchost.exe is able to monitor applications, record inputs, hide itself.

If svchost.exe is located in a subfolder of C:\Windows then the security rating is 76% dangerous. File size is 37,888 bytes (5% of all occurrence), 106,496 bytes, 16,896 bytes, 118,784 bytes, 237,568 bytes, 278,539 bytes, 54,272 bytes, 23,040 bytes, 15,872 bytes, 1,790,464 bytes, 117,760 bytes, 24,064 bytes, 412,720 bytes, 182,784 bytes, 128,512 bytes, 26,624 bytes, 839,691 bytes, 16,384 bytes, 278,537 bytes, 290,817 bytes, 278,541 bytes, 26,112 bytes, 135,168 bytes, 185,391 bytes, 127,488 bytes, 282,637 bytes, 253,952 bytes, 278,543 bytes, 241,664 bytes, 974,848 bytes, 584,192 bytes, 278,547 bytes, 1,725,952 bytes, 1,932,288 bytes, 278,531 bytes, 282,643 bytes, 589,312 bytes, 613,376 bytes, 14,336 bytes, 278,545 bytes, 185,385 bytes, 116,224 bytes, 1,081,344 bytes, 184,459 bytes, 185,389 bytes, 557,056 bytes, 114,688 bytes, 282,653 bytes, 185,400 bytes, 1,930,240 bytes, 27,136 bytes, 983,040 bytes, 278,533 bytes, 430,080 bytes, 319,488 bytes, 684,544 bytes, 380,896 bytes, 27,648 bytes, 892,416 bytes, 156,872 bytes, 43,520 bytes, 19,026 bytes, 839,685 bytes, 766,976 bytes, 214,526 bytes, 839,705 bytes, 640,000 bytes, 507,904 bytes, 50,688 bytes, 282,641 bytes, 839,695 bytes, 185,387 bytes, 1,682,432 bytes, 224,382 bytes, 48,128 bytes, 238,802 bytes, 78,336 bytes, 870,400 bytes, 24,576 bytes, 185,284 bytes, 22,669 bytes, 589,824 bytes, 765,952 bytes, 724,696 bytes, 49,664 bytes, 278,535 bytes, 839,703 bytes, 839,693 bytes, 521,728 bytes, 839,707 bytes, 645,120 bytes, 22,016 bytes, 32,612 bytes, 1,190,400 bytes, 631,824 bytes, 986,112 bytes, 839,697 bytes, 642,048 bytes, 65,536 bytes, 282,633 bytes, 8,192 bytes, 41,472 bytes, 227,840 bytes, 185,316 bytes, 697,772 bytes, 90,112 bytes, 467,926 bytes, 54,657 bytes, 474,624 bytes, 173,144 bytes, 839,687 bytes, 12,800 bytes, 48,640 bytes, 282,629 bytes, 1,748,480 bytes, 17,408 bytes, 631,830 bytes, 839,689 bytes, 28,672 bytes, 33,792 bytes, 40,960 bytes, 18,432 bytes, 22,229 bytes, 1,159,168 bytes.

If svchost.exe is located in a subfolder of C:\Windows\System32 then the security rating is 76% dangerous. File size is 34,816 bytes (5% of all occurrence), 180,224 bytes, 77,824 bytes, 163,840 bytes, 2,023,424 bytes, 44,544 bytes, 53,760 bytes, 1,790,464 bytes, 90,112 bytes, 135,168 bytes, 1,662,464 bytes, 81,920 bytes, 525,312 bytes, 19,728 bytes, 516,096 bytes, 22,016 bytes, 1,310,720 bytes, 1,314,816 bytes, 204,224 bytes, 545,792 bytes, 7,211,008 bytes, 21,257 bytes, 59,904 bytes, 833,522 bytes, 32,256 bytes, 1,375,058 bytes, 32,768 bytes, 245,624 bytes, 58,368 bytes, 790,528 bytes, 1,912,832 bytes, 825,856 bytes, 458,240 bytes, 585,728 bytes, 3,500 bytes, 466,432 bytes, 26,896 bytes, 225,280 bytes, 253,896 bytes, 14,531 bytes, 9,728 bytes, 7,952 bytes, 813,568 bytes, 86,016 bytes, 14,336 bytes, 45,056 bytes, 3,187,200 bytes, 139,264 bytes, 122,880 bytes, 674,304 bytes, 845,824 bytes, 13,308 bytes, 6,656 bytes, 3,536,896 bytes, 802,816 bytes, 132,206 bytes, 800,768 bytes, 708,220 bytes, 196,608 bytes, 477,184 bytes, 1,116,160 bytes, 1,490,944 bytes.

If svchost.exe is located in the folder C:\Windows\System32\drivers then the security rating is 89% dangerous. File size is 30,720 bytes (14% of all occurrence), 10,236 bytes, 34,304 bytes, 30,208 bytes, 31,744 bytes, 22,016 bytes, 26,112 bytes, 26,624 bytes, 32,256 bytes, 544,768 bytes, 39,424 bytes, 901,120 bytes, 34,816 bytes, 15,651 bytes, 25,088 bytes, 39,936 bytes, 29,696 bytes, 461,824 bytes, 24,576 bytes, 25,600 bytes, 23,040 bytes, 32,768 bytes, 16,744 bytes, 274,432 bytes, 81,920 bytes, 22,528 bytes, 777,728 bytes, 27,648 bytes, 384,740 bytes, 14,635 bytes, 16,607 bytes.

If svchost.exe is located in a subfolder of "C:\Program Files" then the security rating is 63% dangerous. File size is 497,664 bytes (21% of all occurrence), 493,568 bytes, 529,408 bytes, 425,984 bytes, 493,056 bytes, 147,968 bytes, 12,800 bytes, 53,760 bytes, 36,864 bytes, 148,480 bytes, 45,021 bytes, 556,544 bytes, 161,792 bytes, 163,328 bytes, 839,687 bytes, 282,627 bytes, 974,848 bytes, 114,688 bytes, 7,680 bytes, 1,930,240 bytes, 73,728 bytes, 203,456 bytes, 65,536 bytes, 356,352 bytes, 237,568 bytes, 18,944 bytes, 90,112 bytes, 14,336 bytes, 2,121,216 bytes, 305,664 bytes, 53,248 bytes, 80,896 bytes, 94,716 bytes, 942,080 bytes, 233,472 bytes, 657,032 bytes, 839,695 bytes, 134,169 bytes, 278,539 bytes, 711,168 bytes, 473,600 bytes, 135,168 bytes, 7,168 bytes, 40,960 bytes, 22,829 bytes, 8,704 bytes.

If svchost.exe is located in a subfolder of C:\ then the security rating is 63% dangerous. File size is 239,104 bytes (22% of all occurrence), 183,808 bytes, 183,296 bytes, 196,096 bytes, 198,144 bytes, 191,488 bytes, 40,960 bytes, 14,336 bytes, 529,408 bytes, 203,264 bytes, 203,776 bytes, 500,224 bytes, 1,130,496 bytes, 260,096 bytes, 46,592 bytes, 197,632 bytes, 43,008 bytes, 184,320 bytes, 200,704 bytes, 164,352 bytes, 297,721 bytes, 636,416 bytes, 184,832 bytes, 215,523 bytes, 237,568 bytes, 502,272 bytes, 49,152 bytes, 198,656 bytes, 188,928 bytes, 126,976 bytes, 477,184 bytes, 182,272 bytes.

If svchost.exe is located in a subfolder of "C:\Program Files\Common Files" then the security rating is 59% dangerous. File size is 397,824 bytes (10% of all occurrence), 1,429,504 bytes, 290,304 bytes, 164,864 bytes, 148,480 bytes, 365,002 bytes, 636,416 bytes, 60,928 bytes, 289,280 bytes, 161,792 bytes, 163,328 bytes, 642,048 bytes, 149,504 bytes, 491,520 bytes, 162,304 bytes, 164,352 bytes, 41,062 bytes, 398,336 bytes, 345,088 bytes, 524,288 bytes, 143,872 bytes, 163,840 bytes, 275,456 bytes, 612,352 bytes, 74,752 bytes, 36,864 bytes.

If svchost.exe is located in the folder "C:\Program Files\Common Files" then the security rating is 58% dangerous. File size is 17,920 bytes (31% of all occurrence), 155,648 bytes, 71,168 bytes, 327,680 bytes, 458,752 bytes, 20,480 bytes, 59,392 bytes.

If svchost.exe is located in C:\ then the security rating is 59% dangerous. File size is 84,992 bytes (22% of all occurrence), 415,232 bytes, 2,090,179 bytes, 115,712 bytes, 86,016 bytes, 219,136 bytes, 64,512 bytes, 62,976 bytes, 17,982 bytes, 15,536 bytes, 41,984 bytes, 24,576 bytes.

If svchost.exe is located in a subfolder of C:\Windows\System32\drivers then the security rating is 86% dangerous. File size is 177,421 bytes (26% of all occurrence), 244,484 bytes, 41,472 bytes, 244,868 bytes, 794,624 bytes, 266,089 bytes, 299,037 bytes, 14,032 bytes, 780,800 bytes.

If svchost.exe is located in the Windows Temp folder then the security rating is 64% dangerous. File size is 106,496 bytes (50% of all occurrence), 655,360 bytes.

If svchost.exe is located in a subfolder of the "My Files" folder then the security rating is 60% dangerous. File size is 13,537 bytes (50% of all occurrence), 7,168 bytes.

External information from Paul Collins:
There are different files with the same name:

"CashToolbar" definitely not required. CashToolbar Downloader-MY adware. Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"France" definitely not required. Added by the MIMAIL.L WORM!. Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"microsoft" definitely not required. Added by the ASTEF or RESPAN WORMS! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Monitoring Service" definitely not required. Added by the CONE.C WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Network Service" definitely not required. CoolWebSearch parasite related. Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"NvClipRsv" definitely not required. Added by the DUMARU-AK WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Online Service" definitely not required. Added by the HOSTIDEL.B or HOSTIDEL.C or TARNO.B TROJANS! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"PowerManager" definitely not required. Added by the JEEFO VIRUS! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Service Host " definitely not required. Added by the TORVEL WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Service Host Driver" definitely not required. Added by the HITON TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Service Process" definitely not required. Added by the DARKER WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Setup experation" definitely not required. Added by the TOFGER-AW TROJAN! Note - this is not the legitimate svchost.exe process, which NOT appear in Msconfig/Startup!
"Srv32Win" can run at start up. Realtime-Spy keylogger (monitoring program). Given a "U" recommendation because it depends if you intentionally installed it. If you didn't treat it as "X" and uninstall or remove
"SSL" definitely not required. Added by an unidentified VIRUS, WORM or TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"SVCHOST" definitely not required. System1060 homepage hi-jacker. Found in a Windows\System1060 directory. Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"svchost" definitely not required. Added by the MORB WORM or TARNO TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Svchost" definitely not required. Added by the MOXE-A WORM! This is not the valid svchost.exe as described here
"System Host Service" definitely not required. Added the the CONE.F WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"System Manager" definitely not required. Added by the BANKER-AE TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"System Update2" definitely not required. Added by the AUTOTROJ-C TROJAN!
"SystemReg" definitely not required. Added by the DEWIN.E TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Task Monitoring Service" definitely not required. Added by the CONE.D WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"tjstartup" definitely not required. Added by the CURDEAL TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Windows Service Host" definitely not required. Added by the CONE.B WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Windows Services Host" definitely not required. Added by the CONE or CONE.E WORMS! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"WindowsUpdate" definitely not required. Added by the ASTEF or RESPAN WORMS or AGENT-V TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"xor" definitely not required. Added by the XORDOOR TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"Zone Labs Client Ex" definitely not required. Added by the NETSKY.F WORM! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!
"zztp" definitely not required. Added by the TANNICK.B TROJAN! Note - this is not the legitimate svchost.exe process which should NOT appear in Msconfig/Startup!

Important: Some malware camouflage themselves as svchost.exe, particularly if they are located in c:\windows or c:\windows\system32 folder. Thus check the svchost.exe process on your pc whether it is pest. We recommend Security Task Manager for verifying your computer's security. It is one of the Top Download Picks of 2005 of The Washington Post and PC World.

Links: svchost.exe, svchost.exe

Score

User Comments

If you try to end svchost in taskmanager, and it starts the countdown to turn off your computer, you can type "SHUTDOWN -a" in the command prompt to abort the shutdown.
Colin

Found SEVEN svchost.exe in my task manager , three being created after I installed an HP printer... their not taking up much cpu though or memory
steve

very very important for windows
seb8303

This is veri important file, if stopped then your computer will stop working as there are lot of services which depend on this service. If we stop this service the other dependent services will stop automatically,. but the interesting part is that we can't stop that service and if we try to do that we get the "critical system alert"
Piyush Srivastava

It is normal to have multiples of this process running at once. If, however, you also have a virus disguised as svchost.exe, then it is dangerous. A good clue to determine whether you have a viral svchost is if your CPU is running at 100%. That is not normal.
k

Is totally harmless when you have the genuine version that has not been infected or is being mimicked.
ingkiller1 (further information)

Manchmal sind das Viren aber meistens ikst es ein Windows-Komponent
Lukas M.

Disabling it in services causes windows vista to blue screen alot, so dont disable it
Thabg007

Microsoft General Service Host / or virus host. To find out which, check what name it is running under in task manager (hint: if it's under your name it's a virus). If you constantly find your processor running high, look for this (unless you're doing some heavy duty work)
Jeff (further information)

i've got 12 of them running on my vista, 5 on System, 4 Local Service and 3 on Network Service
Samet

You guys are asking for a way to get rid of Svchost, because its reducing usability? Fantastic Logic, getting rid of a critical system process, required for Windows to run will definitely increase usability .
QuestionMark

After a bad block error on a DDS4 tape (Sony drive) svchost.exe was taking ~70% CPU, cured by restarting Remote Storage service.
BeefByproduct

Ich habe 14 stück bei mir laufen, merke aber keine behinderung des systems
iwo

if its in its original form its safe with no problems but it may be infected by many programs/viruses allso for exampleit may broke with some lan emulation programs if they break first
jakeri

I have six of them running on my toshiba Satellite P30 2068 laptop. Thing is that in task manager, my machine is running at 2-10%, so i think you guys are quite mistaken. same goes for my desktop. Sometimes after startup, it goes nuts for a couple minutes sometimes reaching 100%, but I just leave it alone for a few moments and everyhing speeds up to normal. Another thing is that SVChost has never tried to access the internet, nor do I get any incoming port messages, system shutdowns, I have had a few memory dumps but I attribute that to my gaming with my graphics/physics settings too high.
Rook

there is a reason for it having multiple copies: each one runs a different set of processes for windows however if one is located out of the system32 folder it is quite possibly a virus
Joshua

More comments can be found here:
(further information)

Summary: 148 users think svchost.exe is essential for Windows or an installed application. 28 users think it's probably harmless. 136 users think it's neither essential nor dangerous. 71 users suspect danger. 176 users think svchost.exe is dangerous and recommend to remove it.. 51 users doesn't grade svchost.exe ("not sure about it").

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