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 Start.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.
The process known as Security Application Launcher or Aquarius Soft PC Remote Shutdown Pro Client Window or RedDwarf or USB Stick Starter
belongs to software Authentium ESP (version 3) or Emsisoft Emergency Kit or rgc:audio Triangle II or BT Internet Security Pack or Aquarius Soft PC Remote Shutdown
by Authentium (www.authentium.com) or Aquarius Soft (www.aquariussoft.com) or Emsisoft GmbH or Motive Communications (www.motive.com).
Description: Start.exe is not essential for Windows and will often cause problems. Start.exe is located in a subfolder of "C:\Program Files".
Known file sizes on Windows 10/8/7/XP are 108,421 bytes (33% of all occurrences), 62,952 bytes and 5 more variants.
The Start.exe file is not a Windows system file. The process starts when Windows starts (see Registry key: MACHINE\Run, User Shell Folders, Run, win.ini, MACHINE\User Shell Folders). The application has no file description. Therefore the technical security rating is 50% dangerous, however you should also read the user reviews.
Recommended: Identify Start.exe related errors
If Start.exe is located in C:\, the security rating is 43% dangerous. The file size is 13,179,660 bytes (50% of all occurrences), 1,484,597 bytes, 127,073 bytes or 192,512 bytes. There is no description of the program. It is not a Windows core file. The program has no visible window. Start.exe is able to record keyboard and mouse inputs.
If Start.exe is located in a subfolder of the user's profile folder, the security rating is 59% dangerous. The file size is 101,888 bytes (20% of all occurrences), 98,304 bytes, 1,089,598 bytes, 140,800 bytes or 1,105,982 bytes. There is no information about the author of the file. It is not a Windows system file. The program is not visible.
If Start.exe is located in a subfolder of C:\, the security rating is 33% dangerous. The file size is 1,593,776 bytes (66% of all occurrences) or 3,042,309 bytes.
If Start.exe is located in the Windows folder for temporary files, the security rating is 73% dangerous. The file size is 10,752 bytes (50% of all occurrences) or 11,264 bytes.
If Start.exe is located in a subfolder of C:\Windows, the security rating is 53% dangerous. The file size is 11,920 bytes (50% of all occurrences) or 42,496 bytes.
If Start.exe is located in a subfolder of Windows folder for temporary files, the security rating is 14% dangerous. The file size is 5,695,384 bytes.
If Start.exe is located in the C:\Windows folder, the security rating is 80% dangerous. The file size is 256,085 bytes.
If Start.exe is located in a subfolder of "C:\Program Files\Common Files", the security rating is 36% dangerous. The file size is 34,321 bytes.
External information from Paul Collins:
There are different files with the same name:
Important: Some malware camouflages itself as Start.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Trojan.Generic.3872768 (detected by F-Secure), and Win32:Malware-gen (detected by Avast). Therefore, you should check the Start.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.
A clean and tidy computer is the key requirement for avoiding problems with Start. 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 repairing of your installation or, for Windows 8 and later versions, 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 Start.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.