What is yahooauservice.exe?

yahooauservice.exe is part of Yahoo! AutoUpdater and developed by Yahoo! Inc. according to the yahooauservice.exe version information.

yahooauservice.exe's description is "AutoUpater Service Module"

yahooauservice.exe is digitally signed by Yahoo! Inc..

yahooauservice.exe is usually located in the 'c:\program files\yahoo!\softwareupdate\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about yahooauservice.exe.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

Vendor and version information [?]

The following is the available information on yahooauservice.exe:

Product nameYahoo! AutoUpdater
Company nameYahoo! Inc.
File descriptionAutoUpater Service Module
Internal nameYahooAUService.exe
Original filenameYahooAUService.exe
Legal copyrightYahoo! Copyright (C) 2006-2008. All rights reserved.
Product version1.0.0.53
File version1.0.0.53

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameYahoo! AutoUpdater
Company nameYahoo! Inc.
File descriptionAutoUpater Service Module
Internal nameYahooAUService.exe
Original filenameYahooAUService.exe
Legal copyrightYahoo! Copyright (C) 2006-2008. All..
Product version1.0.0.53
File version1.0.0.53

Digital signatures [?]

yahooauservice.exe has a valid digital signature.

Signer nameYahoo! Inc.
Certificate issuer nameVeriSign Class 3 Code Signing 2004 CA
Certificate serial number5a2d0e95592b515a5cf3f5c5d59c88b7

VirusTotal report

None of the 53 anti-virus programs at VirusTotal detected the yahooauservice.exe file.

None of the 53 anti-virus programs detected the yahooauservice.exe file.

Folder name variants

yahooauservice.exe may also be located in other folders than c:\program files\yahoo!\softwareupdate\. The most common variants are listed below:

Hashes [?]


Error Messages

These are some of the error messages that can appear related to yahooauservice.exe:

yahooauservice.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

yahooauservice.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.

AutoUpater Service Module has stopped working.

End Program - yahooauservice.exe. This program is not responding.

yahooauservice.exe is not a valid Win32 application.

yahooauservice.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with the file?

To help other users, please let us know what you will do with the file:

What did other users do?

The poll result listed below shows what users chose to do with the file. 91% have voted for removal. Based on votes from 601 users.

User vote results: There were 545 votes to remove and 56 votes to keep

NOTE: Please do not use this poll as the only source of input to determine what you will do with the file.

Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

Please select the option that best describe your thoughts on the information provided on this web page

Free online surveys

And now some shameless self promotion ;)

A screenshot of FreeFixer's scan result.Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.

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Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

Roger Karlsson writes

1 thumb

I noticed that the majority has voted that they will remove the yahooauservice.exe file, but to me this looks like a legitimate file from Yahoo.

Why would you want to remove yahooauservice.exe?

# 24 Jun 2009, 7:49


0 thumbs


# 2 Aug 2009, 18:54

6il writes

0 thumbs

After I install the latest version of YM (, I notice something when I used my web-cam, my viewers is 0 but my chat-mate can see my cam I don't know how that's happened but one thing I notice, I saw the yahooAUservice.exe on the process. I hope that its not the reason why that happens. I hope this is not a bug like on the earlier version of YM I think its ver.7 where someone can view your cam without your permision.

# 4 Aug 2009, 5:27

Petti writes

0 thumbs

yahooauservice.exe on my machine uses in excess of 95% of CPU non-stop. It is the same size as you report. Worse yet, even after I use Remove Programs to try to uninstall the Yahoo updater, this program remains. Worst of all, when it is running, it completely defies the Windows KILL PROCESS function. It has essentially made my machine useless, and getting rid of it is my highest priority.

# 14 Nov 2009, 8:05

Roger Karlsson writes

6 thumbs

@Petti: How annoying that the process remained even after running the Add/Remove programs uninstaller :( If you like, you can give FreeFixer a try. It should be able to remove the yahooauservice.exe from your system. Please let us know if that solved the problem.

You can also disable the program by the following sequence, assuming you run Windows XP:
1. Open the Windows Control Panel.
2. Switch to classic view.
3. Double-click on Administrative Tools
4. Double-click on Services.
5. Locate the Yahoo Updater, and double-click it.
6. Choose Disabled in the Startup type drop-down.
7. Click OK
8. Restart your machine.

Did that solve your problem?

# 15 Nov 2009, 9:03

Pete writes

0 thumbs

I disabled in Services menu. I disabled because I don't like processes running that I don't use.

# 23 May 2010, 13:38

(Pat) writes

1 thumb

I've noticed this running in my processes. Went to it's folder and it has an uninstaller with it. Uninstalled. I like to have as few processes running as possible.

# 22 Dec 2010, 16:02

[Jon] writes

0 thumbs

YahooAUservice represents a bad practice - another one of those useless complications that installs and runs itself even when the Administrator is not logged in!

# 23 Feb 2012, 12:05

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