Logon.exe is a well known piece of adware. It is installed with many products from MSI (Micro-Star International) and tracks the browsing habits of the user. Logon.exe uses the user's browsing habits to present targeted ads during browsing. It runs in the background and can be difficult to remove without an adware removal utility.
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 logon.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.
Description: Logon.exe is not essential for Windows and will often cause problems. Logon.exe is located in a folder listed in the Windows %PATH% environment variable—typically C:\.
The file size on Windows 10/8/7/XP is 390,096 bytes.
It is not a Windows system file. There is no file information. The program has no visible window. Logon.exe is digitally signed. The process starts when Windows starts (see Registry key: User Shell Folders, MACHINE\Run). Logon.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 50% dangerous; but you should also compare this rating with the user reviews.
Recommended: Identify logon.exe related errors
If logon.exe is located in a subfolder of the user's profile folder, the security rating is 58% dangerous. The file size is 405,042 bytes (50% of all occurrences) or 413,312 bytes. There is no description of the program. The program has no visible window. The logon.exe file is not a Windows core file. Logon.exe is able to record keyboard and mouse inputs and monitor applications.
External information from Paul Collins:
There are different files with the same name:
Important: Some malware camouflages itself as logon.exe. Therefore, you should check the logon.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 logon. 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 logon.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.