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When your PC suddenly becomes slower due to a random process, you can easily assume that it is malware, but sometimes it is due to a legitimate Windows program. LSALSO.exe is one such Windows process that often malfunctions, causing extremely high CPU usage.
In this article, we explain what the LSALSO.exe process is, why it causes high CPU usage, and how to fix it.
LSALSO.exe (or LSA Isolated) is a legitimate Windows executable file that is associated with Microsoft's Credential Guard & KeyGuard process. It is an essential process known as a "trustlet", which is a safe process that helps the Windows operating system complete system calls.
