What is LockApp.exe under Windows 10

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LockApp.exe is an important Windows file responsible for overlaying a graphical interface on the lock screen when your computer is not being used for a long time. You will see this screen overlay just before logging in.

Is lockapp.exe a virus? is not. The actual LockApp.exe file is a protected Microsoft Windows system process named Windows “Microsoft”. However, authors of malware such as viruses, worms, and trojans intentionally give their processes the same filename to avoid detection.

Although lockapp.exe is a system process, it is not as important as dwm.exe and other important processes. Disabling will take you straight to the login prompt. In order to disable the lockapp.exe you are dealing with, you need to create a new entry in the Windows registry. To do this, right-click Start and select Run from the menu.


Windows has tons of system or EXE programs that are not known to many people. However, Windows Task Manager displays a list of programs that use your computer’s resources. One of the programs I noticed was LockApp.exe. Sometimes I saw that it consumed a lot of resources, and sometimes it did not. When I looked around many forums, it sometimes seems to have used 35% of the resources and even the use of the GPU. In this article, we discuss what LockApp.exe is and what you should do if it looks suspicious.

LockApp.exe in Windows 10

This is an official Microsoft application and is part of the standard screen lock application on Windows. It’s not dangerous. It is usually located in Windows > SystemApps > Microsoft.LockApp_XXXXXX> LockApp.exe. It is possible that it can do much more than that, including notifying you of an update if you unlock your PC.

Is LockApp.exe a virus?

LockApp.exe The legal program is located in the folder C:WindowsSystemAppsMicrosoft.LockAppsMicrosoft.LockApps_cw5n1h2txyewy. If it is in another location, it could be malware. To confirm, right-click File > Properties > Details tab. You can see that this is a Windows operating system file. In all cases, it is preferable to run antivirus or Windows Defender scanning.

Just before continuing, if you use a file monitoring tool and it triggered you about its change, it does not mean that it is bad. The file is correctly signed by Microsoft, and an update may have been sent to the file.

How to make sure LockApp.exe is not infected

Nevertheless, it is time to use Windows Defender, which has native integration with Windows 10. Start Windows Defender Security System from the Programs menu. Go to Home > Protecting against viruses and threats > Performing an advanced scan.

The first step is to use custom scans and select the files and locations to scan. In this case, choose LockApp.exe. If this does not warn you, use Windows Defender Offline to check it. This ensures that the virus cannot be duplicated because the privileges for each program are very low.

To disable LockApp.exe

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If you want to stop LockApp.exe, you can rename the Microsoft.LockApp_cw5n1h2txyewy folder.

Open the Windows registry and navigate to the next path :


DWORD AllowLockScreen is now displayed in the right pane. Double-click it and set the value to 0.

Do you have problems with LockApp.exe? Maybe your locked screen stopped working, or it got stuck on the screen? Let us know in the comments.

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