What is the process lsass.exe? Win7 boot prompts Lsass.exe system error how to do?

In Win7 system, many users will encounter various problems when booting. For example, some users report that the system cannot log in normally after booting, and the lsass.exe system error prompts. How is this going? What is the process of lsass.exe? Next, Xiaobian will introduce you to the lsass.exe process and the Win7 boot prompt Lsass.exe system error solution.

lsass.exe is what process

lsass.exe is a system process for local security authentication server, user authentication her winlogon service generates a process. If the authentication is successful, lsass will generate the user's access token to launch the initial shell. Other processes initiated by this user will inherit this token.

Is lsass.exe a virus?

The lsass.exe file is usually located in the C:\\Windows\\System32 directory. If lsass.exe appears elsewhere, then she may be a virus, trojan or malicious program! Common virus names are W32.Sasser.E.Worm (Lsasss.exe), W32.Nimos.Worm, and so on.

Why lsass.exe system error

First, the virtual memory is insufficient

Common tips are: "lsass.exe system error: system resources are not enough, can not complete the API" ; This happens, usually due to insufficient virtual memory, then we can use the boot CD, such as winpe, etc., enter my computer & mdash; properties & mdash; advanced & mdash; performance tab, set virtual memory for the system disk A partition with a large disk space — OK — restart the computer to enter the system normally. When setting virtual memory, it is generally recommended to set the virtual memory to 1.5~2 times the physical memory capacity (the minimum and maximum values ​​of virtual memory respectively).

Second, accidentally misuse

Commonly tried to change the password, the provided password is incorrect, or the sam file located in the directory "C:\\Windows\\System32\\Config" The extension) is corrupt. At this time, we still use the boot CD to replace the sam file in the directory "C:\\Windows\ epair" with the above path.

Third, the cause of the virus, related dependent file loss

Common tips are: "lsass.exe can not find the entry: can not locate the program input point asn1ztcharstring_free on the dynamic link library msasn1.dll" ;, lds; lsass.exe can not find the component: did not find dnsapi.dll”, as to which dll is missing, it depends on the situation.

About lsass.exe process and Win7 boot prompt Lsass.exe system error solution is introduced to this, if you also encounter the same problem, you can refer to the method described above to solve.