How to Fix LSAISO Process High CPU Usage in Windows 10

by John Clarke Freelancer
Some users may face LSAISO.exe procedure practice high CPU convention on the PC. This procedure is associated with the KeyGuard and the documentation Guard. VSM utilizes the isolation mode, which is called the Virtual Trust levels, to defend IUM processes. IUM processes, including LSAISO, run in the VTL1, whereas other processes use VTL0. The memory of methods that use VTL1 is confined from spiteful code, which is using VTL0.

The LSASS procedure is dependable for controlling user verification, local system policy, as well as auditing. However, it also manages the security data like password hashes and the Kerberos keys.  If you are facing such troubles, then this post might be useful. Go through the blog and follow the instructions to fix the LSAISO  process high CPU usage in Windows 10.

Causes of LSAISO Process High CPU Usage

The LSAISO procedure runs as the Isolated User Mode in the Windows 10 procedure in the current safe location, which is known as the Virtual Secure Mode. Drivers or applications that struggle to stack a DLL into the IUM procedure linked the thread or transfer the user mode APC may subvert the complete system. It can activate the LSAISO CPU procedure in Windows 10.

How to Fix the LSAISO Process

If you want to fix the LSAISO process high CPU usage, then you can follow the provided steps:

Use the procedure of elimination.
Check the lineup APC’s.
Use the Procedure of Elimination

It is ordinary for several applications to insert the DLL’s or line up the APC’s to the LSAISO procedure. This leads to the LSAISO procedure to experience the extra CPU usage. A procedure of elimination troubleshooting techniques needs that you must stop applications as well as drivers till the CPU spike is diminished. When you get the idea which software is creating the issue and then contact the vendor to update the software.

Check the Lineup APCs

In such a case, you have to download the Windows Debugging tool. It also includes in Windows Driver Kit. As you have downloaded the tool, you may process with the instructions to decide which driver is lining up the APC to LSAISO.

As you produce the CPU spike again, create the kernel memory dump via NotMyFault.exe, a tool which is a bunch in the Sysinternals suite.
If you want to enable the kennel dump, then abide by the given instructions:
Click on Windows key + R and insert the control system in the Run box and tap on Enter to launch System applet in the Control Panel.
Choose the Advanced system settings option.
Click on Settings in Recovery and Startup area under the Advanced button of System Properties box.
Choose the Kernel memory dump option in Write debugging data drop list under the Startup and Recovery box.
Record Dump File position to utilize it in step 5, and hit the OK option.
Press the Start option, find and tap on the Windows Kits on the Start section, and choose the WinDbg(x64/x86) to open the tool.
Tap on the Symbol File Path on the File section, insert the address under for the Symbol Server path field of Microsoft and then press OK.
Select the Open Crash Dump option on the File section.
Go to the location of the kernel dump file, which you have recorded in step 1, and then hit Open.
Check the date on.dmp file to ensure that it was currently formed during a troubleshooting process.
Insert !apc in the Command box and then click Enter.
Locate results for LsaIso.exe. If the driver named “<ProblemDriver>.sys” is listed below LsaIso.exe, then contact the vendor and submit them the Microsoft document for suggested improvement for Isolated user-mode process. It there will be no drivers listed below the LsaIso.exe; it means that its process has no lined up APCs.

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About John Clarke Innovator   Freelancer

21 connections, 1 recommendations, 89 honor points.
Joined APSense since, September 13th, 2019, From New York, United States.

Created on Jan 17th 2020 15:41. Viewed 291 times.


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