lsass.exe

Process name: Local Security Authority Subsystem Service

Application using this process: Microsoft Windows Operating System

File location: C:\Windows\System32 or C:\Windows\System32\system32

Recommended: Check your system for lsass.exe problems

lsass.exe

Process name: Local Security Authority Subsystem Service

Application using this process: Microsoft Windows Operating System

File location: C:\Windows\System32 or C:\Windows\System32\system32

What is lsass.exe doing on my computer?

The process lsass.exe is the Local Security Authority Subsystem Service by Microsoft, Inc. It is responsible for the enforcement of security policies within Microsoft's Operating Systems. This process checks whether a user’s supplied identification is valid or not whenever he or she tries to access the computer system.

With the execution of the file lsass.exe, the system acquires security by preventing the access of unwanted users to any personal information. The process lsass.exe also handles the password modifications done by the user.

The lsass.exe process mainly operates in the system through its ability to create access tokens. These tokens encapsulate the file’s security descriptor, which contains the necessary information to process user authentication such as data on which user holds access to the system and whether the access is mandatory or discretionary.
lsass.exe is a system process that is needed for your PC to work properly. It should not be removed.

lsass.exe

The lsass.exe is an executable file on your computer's hard drive. This file contains machine code. If you start the software Microsoft Windows Operating System on your PC, the commands contained in lsass.exe will be executed on your PC. For this purpose, the file is loaded into the main memory (RAM) and runs there as a Local Security Authority Subsystem Service process (also called a task).

Is lsass.exe harmful?

This process is considered safe. It is unlikely to pose any harm to your system. The lsass.exe file should be located in the folder C:\Windows\System32 or C:\Windows\System32\system32. Otherwise it could be a Trojan.

lsass.exe is a safe process

Can I stop or remove lsass.exe?

Since lsass.exe is a system process it should not be stopped. The process is required for your PC to work properly. Also the corresponding software Microsoft Windows Operating System should not be uninstalled.

Is lsass.exe CPU intensive?

This process is considered to be CPU intensive. Without proper management, CPU intensive processes can manipulate system resources causing speed loss. Check the Microsoft Windows Operating System settings to see if you can turn off unneeded modules or services.

Why is lsass.exe giving me errors?

System process issues are mainly a result of conflicting applications running on your PC. Consider uninstalling any applications you are not using. Then reboot your computer.

Why do I have multiple instances of lsass.exe?

The system sometimes dedicates more resources to a specific task by generating multiple instances of one process. However this can also be a symptom of a virus or trojan infection. Make sure you always use an updated antivirus and run a full scan.

lsass.exe is known to have 7 other instances:

Trojan.W32.Webus