How to remove the WinLoader virus

Most antivirus programs identify WinLoader.exe as malware—for instance Avast identifies it as Win32:Adware-gen, and Kaspersky identifies it as Worm.Win32.VBNA.b.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the WinLoader.exe malware

WinLoader.exe file information

The process known as Aplicativo de logon do Windows NT belongs to software Aplicativo de Logon do Windows NT by Microsoft (

Description: WinLoader.exe is not essential for Windows and will often cause problems. WinLoader.exe is located in the C:\Windows folder. Known file sizes on Windows 10/8/7/XP are 518,656 bytes (50% of all occurrences) or 20,480 bytes. 
The application is loaded during the Windows boot process (see Registry key: MACHINE\Run, Run). The WinLoader.exe file is not a Windows system file. WinLoader.exe is able to connect to the Internet, record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 60% dangerous.

Recommended: Identify WinLoader.exe related errors

If WinLoader.exe is located in the C:\Windows\System32 folder, the security rating is 36% dangerous. The file size is 20,480 bytes. The program has a visible window. There is no information about the author of the file. The program starts when Windows starts (see Registry key: MACHINE\Run, Run). It is not a Windows core file.

Important: You should check the WinLoader.exe process on your PC to see if it is a threat. If Aplicativo de logon do Windows NT 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.


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Best practices for resolving WinLoader issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active WinLoader process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the WinLoader.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

WinLoader.exe [all]