Basic lsass.exe information - guidance on how to remove lsass.exe error

What is lsass.exe?

lsass.exe is an executable process called Local Security Authentication Server. It’s responsible for the verification of user logons to Windows system or computer server. Its execution can generate the functions to authenticate users for the Windows logon service, enforce the implementation of security policy, create access tokens and handle configuration modification. As an integral part of system, it also writes data into Windows Security Log. Whenever a user logs on to computer, lsass.exe will check the validity of his/her identification, thus prevent attacker or hacker from acquiring sensitive information. Forcibly terminate this process will render account loss and you will be prompted to reboot computer. If you find this process is shown in C:\WinNT\System32\LSASS.exe (Windows NT4/2000) or C:\Windows\System32\LSASS.exe (Windows XP, 2003/2008), it means your computer has been infected by virus.

lsass.exe error message

The requested operation was unsuccessful.

Lsass.exe is unable to locate component.

This system is shutting down. Please save all work in progress and log off. Any unsaved changes will be lost. This shutdown was initiated by NT AUTHORITY\SYSTEM.

The system process C:\WINDOWS\system32\lsass.exe terminated unexpectedly with status code 0. The system will now shut down and restart.

What cause lsass.exe error?

lsass.exe is infected by virus, spyware or malware

Loading of malicious toolbar and plug-ins

Too many leftovers or junk files stored in hard disk

Cluttered out-of-date registry entries in Windows registry

A lsass.exe file is damaged or missing

Outdated Windows system or hardware driver

Related registry files are seriously damaged or corrupt

Traumatic application conflict

How will the system be like if lsass.exe gets infected?

Program files, system files and some hidden files are deleted or modified.

Virus pretends to be this process and collect personal information for devious purpose.

Malware that infects lsass.exe exploits system vulnerability and replicate the virus on system.

System resource and memory space has been eaten up due to the replication of worm virus.

Users’ credit card number, password, digital ID, account information and financial data will be sent to remote controller due to monitor from spyware

How can you fix lsass.exe error completely?

Way1 Give system a restoration

1.       Log into Windows as an administrator

2.       Open Start menu, move the cursor to All Programs, Accessories, System Tools and to System Restore.

3.       Select “Restore my computer to an earlier time” from the System Restore page, and then click Next.

4.       Choose a restore point which is error free, and click Next again.

5.       In the following pop up pages, click OK and Next to confirm options and complete procedures.

6.       Restart computer and log in as a system administrator. A message will show up to inform you that the restore has completed, click OK to finish the whole process.

Way2 Do a Windows Update

1. Go to Start Menu, right click My computer and choose Properties.

2. In the Properties page, click automatic updates.

3. In the following pop-up page, check automatic updates service to open it. At the same time, uncheck turn off automatic updates option.

4. Restart computer to active the changes.

5. Open Start Menu again, pick Windows Update.

6. Follow the navigation to complete Windows update.

Way3 Make a cleanup on Windows registry

The Windows registry is a system repository where all information of the computer and Windows system is stored. It keeps track of system policy, reference to file, device configuration and other more details about system setting. If it’s messed up, there will be a huge decline in system performance, furthermore, other more undesirable consequences may come along. For example, computer may suffer sudden power outage, constant beeping noise and blue screen of death. To fix lsass.exe error, it’s highly recommended to solve Windows registry error first.

Regarding to the solution to fix registry problems, a powerful registry cleaner equipped with specialized fixing tools is the top choice to help deal with common and obscure registry problems. It not only can clean up system junk files, uninstall stubborn applications, but also do the cleaning job automatically and can be customized according to users’ requirement. How to fix lsass.exe error and prevent your computer from encountering registry crisis?