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What is Au_.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 Au_.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 Au_.exe related errors

Au_.exe file information

The process known as Yahoo! Toolbar Uninstall Setup or Dropbox (version 3.8.8 Installer, 54.4.90 Installer, 53.4.67 Installer) or McAfee Security Scan Plus Installer or MEGAsync or Coupon Companion Plugin Installer or WinDirStat (version 1.1.2) or Setup Application or KUninstall

belongs to software Dropbox Uninstaller or McAfee Security Scan Plus or Vulkan Runtime or MEGAsync or WinDirStat or IdleCrawler or XFINITY Toolbar or Installer miAPCP

by (www.yahoo.com) or Dropbox (www.dropbox.com) or AnchorFree (anchorfree.com) or McAfee (www.mcafee.com) or Reimage or TVersity or Conduit (www.conduit.com) or 215 Apps.

Description: Au_.exe is not essential for Windows and will often cause problems. Au_.exe is located in a subfolder of Windows folder for temporary files—normally C:\Users\USERNAME\AppData\Local\Temp\~nsu.tmp\ or C:\Users\USERNAME\AppData\Local\Temp\~nsuA.tmp\. Known file sizes on Windows 10/11/7 are 85,061 bytes (3% of all occurrences), 57,357 bytes and 89 more variants. file.net/process/au_.exe.html 
The file is not a Windows system file. It is a file with no information about its developer. Au_.exe is able to monitor applications and record keyboard and mouse inputs. Therefore the technical security rating is 53% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall the program Reimage Repair or Dropbox Uninstaller, or ask the software vendor [1][2] for support. Click on Reimage Repair or Dropbox Uninstaller in Windows Control Panel (Software or Programs section) to uninstall it.

Recommended: Identify Au_.exe related errors

Important: Some malware also uses the file name Au_.exe, for example Gen:Application.Parj.1 (detected by F-Secure), and Win32:Conduit-C [PUP] or NSIS:Crossrider-FA [PUP] (detected by Avast). Therefore, you should check the Au_.exe process on your PC to see if it is a threat. If Yahoo! Toolbar Uninstall Setup has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.

Score

User Comments

Arrived with download of IE7PRO. Deleted it through a DOS boot from floppy. Massive resource hog.
  Joe Usseglio  
suddenly appeared when removing a program called Regiry Helper
  ozboy  
It really depends on the actual file, 99% are probably harmless, but its possible to call a file by any name so its impossible to say if its safe or not
  Damien  
When trying to remove a program it installed its self. Gutten ;/ it has locked me out of the folder
  Vicky  
it installed with the latest flash player
  h.h.pikal  
It apeared when an update was made to flash player activeX
  Jorge  
suddenly appeared when removing Mozila Firefox 3.5
  tomi  
part of installer/uninstaller process which was discovered while uninstalling pre-installed gateway games off a gateway laptop. could be used to install/uninstall legit/safe software or malware in the event a software author used it as its installer. this task should only show up in taskman while installing/uninstalling applications. if seen running all the time then it is most likely an imposter/malware binary sucking up your system resources at the very least.
  0160  
I uninstalled Veoh from my system and AU_.exe appears
  Serenity  
I had a pc come in with a Au_.exe file in the Appdata\local\tmp\~nsu.tmp directory together with OphCrack. When running the Au_.exe it made a Bu_exe.
  Tom Leppens  
Task Manager
  Kara-Bera  
part of uninstall for xampp, uninstall stopped when i stoped process
  benny_Tllh  
Used during doubletwist uninstall process
  Ryan  
I was on a uninstallation window for mozilla and when I ended the process the uninstallation window was closed so yeah, it's also an uninstallation process.
   
It suddenly apeared when an update was made of the DivX player. Update is not running now as it is blocked by Anti-Virus. i will test now what will happen if i let AU_exe run...There was written Twonky Media Server i think its a programm
    (further information)
I think it stands for Auto Update
  Edd  
One instance of this file appears to be ActivInspire Web Installer setup 1.3.0.0. It appeared when installing the software.
   
it appeared when i was uninstalling an app (IMVU) when i was uninstall the i noticed my processor speed gat very high (90%) and i saw it in the processes . At one time it even made my laptop turn off atomaticaly
  Zuh  
i had installed a player called Veoh and when i unistalled it my firewall informed me that Au_.exe is trying to access "http://www.veoh.com..."
   
I think it appeared while trying to uninstall IMVU, a virtual chat software. At least, I've never seen it before doing this..
  Moonie  
Uninstalled kdiff3 and au_.exe tried to install itself -- it was blocked by my ZoneAlrm.
  CJ  
SpyWare, Many Google Searches bring about Spyware results and many hits in 'Trojan, Adware,' etc... DELETE IF SPOTTED.
  RomanBell  
Appeared in temp folder when I uninstalled WinPcap(Also not installed by me)
  Gemin  
Threadfire detection of AU_.EXE opun uninstall of Comodo Geekbuddy. Believe it to be harmless in this case..
   
I just got a warning from my Firewall preventing Au_.exe from using a Windows messaging system component. This happened while uninstalling Widi 3.2 Trial. However you look at it , Au_exe is used to send/ collect information to a server. The people behind the server may be legitimate. Even if they are its still a breach of our privacy, and is therefore a sort of Trojan. The last Au_exe I had connected to a Russian server and tried to download more viri. This penetrated both firewall and virus scanner, my router firewall and other security software. My advice is kill it, block it, delete it.
  m  
Yahoo toolbar uninstall program, runs to instal and uninstall the program, when i uninstalled yahoo this file ran in the temp folder and then once yahoo was removed the file was automatically deleted.
  Kyle   (further information)
I believe it came in with update to flsh player. Has captured my home page and blocked email access. Definitely a malware program. Now shows up in task manager using 98% of resources
  peter yule   (further information)
showed up trying to uninstall yahoo toolbar I got from infrarecorder. Resource hog 99% cpu.
  Bruce  
It's actually supposed to be part of the MiniyLyrics program
  Exxi3  
Au_.exe appeared when I tried to uninstall Spotify. Avast suggested I open it in a Sandbox, so did, then it popped up with another warning for Bu_.exe - in the end I uninstalled without using sandbox feature.
  CR  
Zone Alarm Outgoing Program Block for au_.exe in tmp\~nsu.tmp folder
  KDSSR  
it stands for AUTO-UNINSTALLATION.. goes away once uninstallation finished
  Ric  
This is a nasty little thing that came about when I installed iLiVid and Real Player when I couldn't get the programming I wanted from Graboid (REALLY stupid move).
  spambrando  
Something to do with facemoods
  mm  
found when unustalling windows ilivid toolbar (hijacked FF keyword.url)
  dakisan  
my anti virus has detected as low level risk and i deleted with norton anti virus
  A.aquilani  
won't let you uninstall yahoo toolbar
   
For me, Process Manager lists it's parent as "Uninstall Dragon Age.exe", which makes sense because that's the first I've seen it - uninstalling Dragon Age.
   
Found when downloading epicbot, it connects to a russian server as I used wireshark.
  EskiBoy  
AU_.exe appeared as ahigh-level threat (AVG) when uninstalling a spyware toolbar. Removal significantly improved system performance. My guess based on incidental reports: malware that ties itself to other software and triggers on uninstallation.
  SethC  
Antivir alerted after updating TeamViever and Teamspeak. Killed 5 process and 51 files. Could be used by TeamViever to uninstall the outdated client.
  Gnseblmchen  
My Kerio firewall alerted an outgoing TCP/IP request as soon as I removed Searchya toolbar for IE (from control panel add/remove) . Searchya toolbar was nagging / behaved like a mal-ware.
  Pongapundit  
Au_.exe is used by Yahoo toolbar, apparently to make it persistent (hard to completely uninstall)
  dannyr174  
Showed up during uninstallation of BT broadband helper
  Alan  
All of my Antivirus/malware/spyware programs point to this as the central cause of many issues on my computer: Freezes, denied access to files, unwriteable temp folder(which results in installation of programs being impossible. I don't know how to remove it for the life of me but if you can then get rid of the damned thing!
  Mike  
I have it on multiple computers. Seems it has to do with uninstallers, but it can also be malware... or maybe you guys are talking about Au.exe, which has a difference.
  ZZZZZ  
it stands for AUTO-UNINSTALLATION..(or only a part of its scripting) only appeared while uninstalling DAEMON Tools Pro (^^although in this case it did not ask for net access)
  SliXuZ  
Prevents Nik add-ins for Photoshop or Lightroom from running. It is a nuisance but does not afflict my 32 bit system. Only my 64 bit HP laptop.
  Rick Hurst  
Starts running when attempting to uninstall Ccleaner
  eharv   (further information)
Au_.exe appeared after attempting to uninstall Delta Toolbar via windows control panel. cannot uninstall toolbar now.
   
Appeared when uninstalling Razer Synapse software, blocked it by Kaspersky
  Arden  
was un installing yahoo toolbar and locked up and would not delete the yahoo tool bar. and is using now half of my cpu resources, will try and reboot and try again this tool bar seems to be used on several differerent programs
  Allen  
Au_.exe is inside (~nsu.tmp) a folder and it is not a windows program at all
  Mr. Lee  
Pops up when trying to uninstall New.net malware
  Sharon  
starts up when i attempt to get rid of coupon savings.
   
Probably it's Adobe Updater of Adobe Reader. After instalation of Adobe Reade program was deletable (befor no).
  JB  
It means Application Uninstaller if you uninstall a program. It's a system essential.
   
FlightGear Uninstaller
  SirJavaGaming  
i herd it is malware and to get ride of it as fast as possible its to be called a Trojan/spyware
  Rick  
Things that probably got me the Au_.exe are: Adobe Flash Player update, KMPlayer update. Or even the Crome browser update. Only updated these three and Au_.exe appeared between the processes.
  Zoy  
For me, it was the uninstaller for Google calendar sync
  J Maurice  
Symantec did not like it so I deleted it. It was installed in the C:\users\appdata...\temp folder
  Smedley O'Hara  
Almost impossible to remove. Prevents any installation from running. Access denied to user\appdaa\local\temp
  Stuart Grant  
Appeared when trying to uninstall DriverRestore. Norton blocked it from running
  Lao Yin  
Torch Browser Uninstall Size 188 KB (192.848 Bytes Size on Disk: 192 KB (196.608 Bytes)
  Andreas_H   (further information)
Au_.exe appeared when I was uninstalling garena
  pam  
Installed with the following applications: HiBase Group DBF Converter vtbc Riverbed Technology WinPcap v4.1.3 Movavi Video Editor Plus v14.3 Movavi Screen Recorder v9.2
  rtunderw  
(A)ndroid SDK (U)ninstall
  Herbert  
as i understand it is part of an uninstaller code which may arrive with something uv installed. However also can be used as cover for virus. Anti virus often gives a false positive on it. Check where its popping up. If u dont need it, remove
  maria   (further information)

Summary: Average user rating of Au_.exe: based on 76 votes with 69 user comments. 11 users think Au_.exe is essential for Windows or an installed application. 9 users think it's probably harmless. 17 users think it's neither essential nor dangerous. 16 users suspect danger. 23 users think Au_.exe is dangerous and recommend removing it. 17 users don't grade Au_.exe ("not sure about it").


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Best practices for resolving Au_ issues

A clean and tidy computer is the key requirement for avoiding problems with Au_. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.

To help you analyze the Au_.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.



Other processes

Au_.exe [all]