What is Winlogon.exe?
Winlogon.exe is not a unique file in Windows. When you log into Windows, Winlogon.exe will load in and manage your logging in. After the computer start up, you will select a user name and sometimes enter a password. All those tasks are handled by Winlogon.exe. Of course, in addition to those jobs, Winlogon.exe deals with many other complicated jobs in Windows.
As Winlogon.exe is likely to have other copies in PC, it becomes a common target of spyware, virus and many other malicious threats. Virus will use Winlogon.exe to spread itself all over your computer and download various malicious programs, some of which you may not even know.
Usually if your Winlogon.exe is infected by virus, it will occupy large system resource. You can press Ctrl+Alt+Del to run your Task Manage. Under the Processes, you can check whether Winlogon.exe is occupying high CPU. You should restart your computer first of all. Before running any program, run Task Manage to observe CPU occupation of Winlogon.exe. If it still take over a very high CPU, it is certain that your Winlogon.exe is abnormal. Not all files named Winlogon.exe are legitimate. You should take action to check whether your Winlogon.exe is infected and remove threats from your computer as soon as possible.
I do not know exactly how to remove false Winlogon.exe manually. However, manual way to remove virus is always not recommended by experts, so why not waste time on learning manual removal instruction if you are not a advanced computer user.
The best way to remove Winlogon.exe is to scan your computer with an excellent security program first. All threat can be easily found by professional antivirus program.
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