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What is Logon.exe? A Virus or Malware and Uninstall

Logon.exe or LogonUI.exe is not a virus or malware, but it does have the potential to expose you to some dangers if you don’t know what it is and what it does, especially if you’re one of the millions of people with ransomware on your computer right now who needs to uninstall Logon.exe to get rid of it! 

This article will teach you what logon.exe is, how it could be harmful to your computer, and how to protect yourself from anything potentially harmful if you do not remove logon.exe from your computer now!

What is Logon.exe?

The logon process is started by the explorer.exe file, which reads the registry to see if there are any user names that need to be loaded. If it finds an entry for a username in the registry, then it uses that name to load all of the files required by that user (such as the desktop). The logon process also checks to see if you have your own account in the registry, which allows you to bypass logging on with a username and password each time you startup your computer. 

It looks for this account first because that should always be what you use when you are logged into Windows. If the logon process doesn’t find your account but does find one in the registry, then it will prompt you to enter a username and password.  

When someone logs off their system, they have to tell Windows they want to do so before anything else happens. After doing this, Windows saves their session information so they can pick up right where they left off when they login again later on.

Is Logon.exe a Virus or Malware?

This file is not a virus or malware, but it can cause problems for your computer. It’s possible for this file to create an issue with your Windows Startup process, which will force you to restart your computer in order to get the problem fixed. In other cases, the app might be related to another program on your computer that has been uninstalled in the past. 

If you suspect that Logon.exe is linked to a program that you’ve uninstalled recently, it may be worth running the installation again. If there are no programs left on your computer that match up with this log file, then we recommend deleting it from your system. 

Be sure to backup your files before doing so just in case anything goes wrong.

How to Uninstall Logon.exe

Uninstalling Logon.exe may be as simple as right-clicking it and selecting Uninstall. If that doesn’t work, try going to Control Panel > Programs > Program Name (Logon) to uninstall it from there. 

Some viruses such as trojans use similar names, so you can use Task Manager to identify the process and then click End Process if the name matches up with a virus. Once you have uninstalled Logon.exe, reboot your computer and perform a scan with an antivirus program like Malwarebytes Anti-Malware. 

You should also keep all of your programs updated in order to protect against new malware threats. Windows Defender, Microsoft’s built-in security software, automatically scans your system for malware on a daily basis. 

To access this setting go to Settings > Update & Security > Windows Defender and select Scan my device under the heading Advanced Settings. If at any point during your computer usage today, you experience problems involving updates, including installation issues or download errors, make sure Windows Update is turned off immediately. 

Turn it back on when everything has been resolved and turn Automatic Updates off until further notice

How to Protect Yourself from Viruses and Malware

It’s important to take steps to protect yourself from viruses, malware, and other malicious programs that can harm your computer. 

  • Avoid clicking on links in emails from unknown sources. 
  • Always keep your antivirus software up to date. To remove this virus you need an antivirus program installed. Windows 10 comes with Windows Defender, but some people might prefer an alternative such as Avast! Pro Antivirus or McAfee AntiVirus Plus. If you are unsure which one will work best for you, it might be a good idea to try out a free trial of each one before deciding which one to buy.

One thing you don’t want to do is accidentally download and install the Logon.exe virus onto your computer because then you’ll have more problems than just having the wrong anti-virus software. 

Remember: A stitch in time saves nine. You’ve heard that phrase before, but why not make it part of your life when it comes to computers? Staying ahead of potential threats is the key to staying safe. There are two things you can do right now that won’t cost you anything and won’t take much time. 

Check if your computer has any uninstalled software listed under Installed Updates under View Your Update History.  You may not realize what software came preloaded on your machine.

Is Windows Logon application A virus?

Windows Logon application may not be a virus, but it could be malware installed on your computer. This can happen if you download something from the internet that you didn’t know was infected or have an infected USB drive plugged into your machine. 

The Windows logon application will show up as a process in your task manager and it will start using 100% of your CPU until it crashes the system. 

It’s important to get this fixed before it does more damage. Here are some steps for how to fix this:

Start by looking for any suspicious-looking software in your downloads folder or anywhere else on your hard drive. If you find anything suspicious then delete it immediately and make sure you scan your PC with anti-malware software like Spy hunter.


Logon.exe is not a virus, but it can be dangerous if you do not know what it is and it can make your computer run slower. If you are seeing this file on your desktop, I recommend checking to see if the program with which it’s associated has stopped running, then restarting the program to see if that fixes the problem. If that doesn’t work, try using System Restore to revert back a few days before you noticed the issue and see if that fixes it.

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Michelle Paulsen

Michelle, a former author for renowned tech publications TechCrunch and The Verge, has established herself as a prominent figure in technology journalism. With her deep industry knowledge and experience, she excels at breaking down complex tech topics into engaging, reader-friendly articles. Known for her sharp analysis and compelling storytelling, Michelle has a proven track record of enlightening readers about the latest tech trends and innovations.

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