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 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. 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.


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Best practices for resolving WinLoader issues

A clean and tidy computer is the key requirement for avoiding problems with WinLoader. 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 doing a repair of your installation, or in the case of Windows 8, 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 WinLoader.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.

Other processes

WinLoader.exe [all]