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What is svchost.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the svchost.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for svchost.exe related errors

Svchost.exe file information

Windows Task Manager with svchost
Svchost.exe process in Windows Task Manager

The process known as Generic Host Process for Win32 Services or Host Process for Windows Services or winrscmde or AutoHotkey or BindFile Microsoft or CCProxy Microsoft MFC Application or mIRC or Hostprozess für Windows-Dienste

belongs to software Microsoft Windows Operating System or AutoHotkey or GT.exe or BindFile or guangao or mIRC or CCProxy Application or Generic Host Process for Win32 Services

by Microsoft (www.microsoft.com) or Home or MS User or mIRC Co. (www.mirc.com) or TODO: lQøST or All or VolkS or Sydinar Software.

Description: The original svchost.exe from Microsoft is an important part of Windows, but often causes problems. Svchost.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 8/7/XP are 14,336 bytes (77% of all occurrences), 20,992 bytes and 36 more variants. http://www.file.net/process/svchost.exe.html 
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 a LAN or the Internet. Therefore the technical security rating is 9% dangerous, however you should also read the user reviews.

Recommended: Identify svchost.exe related errors

Viruses with the same file name

Is svchost.exe a virus? No, it is not. The true svchost.exe file is a safe Microsoft Windows system process, called "Generic Host Process". However, writers of malware programs, such as viruses, worms, and Trojans deliberately give their processes the same file name to escape detection. Viruses with the same file name are e.g. IRC.Backdoor.Trojan or Trojan.Gen (detected by Symantec), and Trojan-Downloader.Win32.VB.bsa or P2P-Worm.Win32.Palevo.andm (detected by Kaspersky).
To ensure that no rogue svchost.exe is running on your PC, click here to run a Free Malware Scan.

How to recognize suspicious variants?

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

Important: Some malware disguises itself as svchost.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the svchost.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

Score

User Comments

Located in System32, it's filesize is 27,648 bytes. Looks pretty legit, but consumes a lot of memory.
  zxin  
Its a windows process, its essential, dont delete it (if you delete it you wouldnt be able to read this anyway)
   
Earlier message - I didn't mention that Norton help said it appeared to a program removed last year from my computer - which is when the Norton blocks started. It looks as though Windows7 wants to access its files to repair something but Norton blocks it.
  nojo  
Norton 360 InetSecurity blocks this file. When I shut down I get a message "Waiting for background programs to close" & Task Host etc etc. Takes a long time to close down. I get messages from Norton about "High Disc Usage" when I'm doing nothing much - pops up for a time and this message ceases.
  nojo  
Svchost.exe is a process on your computer that hosts, or contains, other individual services that Windows uses to perform various functions. Refer to http://www.processlibrary.com/en/directory/files/svchost/24778/ for more detailes.
  Mike   (further information)
Windows needs this to run. It should be kind of safe.
  Elijah  
often highly annoying and relates to bugs and failures with other programs using it
   
Seems to be running all the time now. Probably causing on-line duties to slow down rather than speed up. If I end process through task manager have to reboot computer to get on-line again.
  Paul Kelly  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of svchost.exe: based on 763 votes with 9 reviews. 222 users think svchost.exe is essential for Windows or an installed application. 40 users think it's probably harmless. 184 users think it's neither essential nor dangerous. 90 users suspect danger. 227 users think svchost.exe is dangerous and recommend removing it. 70 users don't grade svchost.exe ("not sure about it").


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Best practices for resolving svchost issues

A clean and tidy computer is the key requirement for avoiding problems with svchost. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the svchost.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.



Other processes

svchost.exe [all]