A simple malware scan could protect your PC.

One of the integral parts of the login system for the Windows operating system (OS), the winlogon.exe process controls various keyboard sequences, like pressing Ctrl+Alt+Del to login or view task manager. The winlogon file also controls the loading of instrumental elements within the operating system, including user profiles, system lock during a screensaver, and also the verification of a unique product key.

Since this file handles a variety of required features of the Windows operating system, the process is considered ‘critical’ and any inconsistencies or errors within this file can be fatal for the proper function of any computer system.

Is winlogon.exe a virus?

While certain files can be cleverly disguised as a virus, the proper system file is not a virus. However, if the file has been compromised, moved, or re-created, it may be hazardous for the health of your operating system. For that reason, it is not recommended to download the winlogon.exe file from any website. Running a system scan can help alleviate any question or doubt about the security of this file and/or your computer system as a whole.

Is winlogon.exe a required task or can I end it?

This task is extremely vital and should not be stopped or ended. As it is required for logging onto the computer, ending the task will likely cause a system error and require a restart. If multiple instances of this file are shown within a folder directory or in the processes list, your computer may be infected with a virus of some kind. Having multiple files with the same (or similar) names may be the first warning sign that your system has been (or will be) compromised. If you do notice more than one file with the same name, run a system scan immediately to make sure your computer is safe and these files are supposed to be there. If not, many system scans will alert you and allow you to remove files that do not belong on your computer.

How do I stop getting winlogon.exe errors?

To stop getting winlogon.exe errors, you must first isolate the cause of the problem. As the file is required for logging on, it may be a trojan or virus on your computer. If this is the case, a system format or restore is recommended. Other reasons for getting errors would be incorrect installation of system files or incompatibility of system files. This can happen if your computer experiences problems during the installation of a Service Pack. The best options in that case would be to either uninstall the Service Pack and then re-install it, or, perform a complete system format and re-install, depending on the severity of the errors.

Whether you are getting winlogon.exe errors or not, it is a good idea to run a full system scan, also allowing it to continue to monitor your system. Doing this may save you a lot of time and headache than worrying about backing up your system files as you perform a complete format.

See the 2-step process for securing your system by running error and malware scans