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Manual Guidance
Security Analysis
Safety Score (informational)
90% Safe
Risk score: 3/3 · Checked by WinLibrary Engine
What is lsass.exe?
This page provides common lsass.exe error messages, safe troubleshooting steps, and informational file metadata to help you diagnose issues on Windows 10/11.
In simple terms, lsass.exe is a Application Executable (EXE) that allows Windows and software to load specific functions at run time. Many components depend on it, so a broken copy can trigger repeated errors.
Common Error Messages
- lsass.exe is missing from your computer.
- lsass.exe could not be loaded.
- The code execution cannot proceed because lsass.exe was not found.
Example: lsass.exe is missing from your computer.
Possible Causes
- Security software quarantined a file with the same name.
- A third‑party installer replaced the file with an incompatible version.
- A Windows update or driver update did not complete correctly.
- Disk errors, abrupt shutdowns, or failing storage corrupted the file.
How to Fix Missing Error?
- Reinstall the application or driver that is related to the error.
- Restart the PC and retry the action that triggers the error.
- Run Windows Update and reboot.
Note: The metadata shown here is informational and may not match your exact system. For critical system components, prefer official sources and Windows repair tools.
Technical Details
| Original Filename | lsass.exe |
|---|---|
| Publisher | Microsoft / Third Party |
| File Type | Application Executable (EXE) |
| Version | 15.92.9249.2982 |
| File Size | |
| Architecture | x64 |
| Last updated | 2025-12-17 |
| Default location | C:\Windows\System32 |
| Downloads | 2,107,176 |
| Rating | 4.7 / 5 (7,793 reviews) |
| SHA-256 Hash | 4c99cba8bb394c35d3875a47a77b6c9553c560d63d426d46071c06b0a394355d |
| MD5 Hash | 966487982a46a70fc40514d35b7729fb |
| Digital signature | Valid · Microsoft Corporation |
FAQ
- Is lsass.exe a virus?
Legitimate system components can share names with malware. Verify the file path (C:\Windows\System32), check signatures, and scan the system if you suspect an infection. - Where is lsass.exe located?
Typical default locations include C:\Windows\System32. The actual path depends on the software that installed it. - Can I download lsass.exe from the internet?
Use only trusted sources. If you are unsure, reinstall the related app/driver or use Windows repair tools instead of copying random files. - What usually causes lsass.exe errors?
Most issues come from corruption, version mismatch, deletion/quarantine by security software, or an incomplete update.