What is a.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 a.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.

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A.exe file information

Windows Task Manager with a
A.exe process in Windows Task Manager

The process known as Auto Check Utility or BDA Monitor Application belongs to software Imation Disk Manager V a or BDA Monitor Application or Microsoft Windows Operating System or System Alert Popup by Microsoft ( or eMPIA Technology (

Description: A.exe is not essential for Windows and will often cause problems. A.exe is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 86,020 bytes (10% of all occurrences), 141,824 bytes and 36 more variants. 
There is no file information. It is not a Windows core file. The program starts upon Windows startup (see Registry key: Run, DEFAULT\Run, MACHINE\RunServices). The program has no visible window. Therefore the technical security rating is 57% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with a.exe occur, you can uninstall the program using the Control Panel ⇒ Uninstall a ProgramSystem Alert Popup.

Recommended: Identify a.exe related errors

External information from Paul Collins:

Important: Some malware also uses the file name a.exe, for example TROJ_FAKEALE.JJO or TROJ_SMALL.EK (detected by TrendMicro), and Trojan-Downloader.Win32.FraudLoad.evz or Heur.AntiAV (detected by Kaspersky). Therefore, you should check the a.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.


User Comments

Scanned it by Norton, WORM detected
Norton: Adware.WinFavorites
  DWay   (further information)
you get it if you download like picturestealer of emotionstealer add for msn moslty if you download unknown programs RUN regedit en search everting that has the word solutions and delete it use Adaware SE it instals makes conection with a remote computer without you notic
I know It appeared after I accessed TVUplayer, I picked a channel to watch and viola boompff there it was.
It its totally dangerous and cannot be quarantined, nuked, healed, vaulted, removed, killed or deleted! It took control of several functions of my operating system of my new Acer-Vista 64 computer and seems to slowly be spreading its fingers of doom throughout my new computer. It waltzed right through the Windows Defender, Avira and Mozilla firewalls and all security guards. It truly sucks!!!
its not a windows core file
Kepps loading a random radiostation in the background .. uses alot of CPU , found it under my processes on task manager.. verry annoying when watchin a film or listening to music, any antivirus program should remove it
If a.exe is located in a subfolder of "C:\Documents and Settings" then it is very bad, it will cause pop ups to occure regardless of wether you have a pop-up blocker or not. remove it from the registry using regedit or you could use "hackthis" if you dont know your way around the registry
it can also be found in C: documents and settings "your username" Temp... Also same directory except prefetch folder
There is no legal file named a.exe

Rating chart

Summary: Average user rating of a.exe: based on 11 votes with 11 user comments. 2 users suspect danger. 9 users think a.exe is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving a issues

A clean and tidy computer is the key requirement for avoiding problems with a. 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, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the a.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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

a.exe [all]