How to Fix lsm.dll Missing Error – Step by Step

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How to Fix lsm.dll Missing Error (Solved)

How to Fix lsm.dll Missing Error (Solved)

What is lsm.dll?

lsm.dll short for “Local Security Authority Subsystem Service Dynamic Link Library” is a crucial system file in Windows operating systems. It is a DLL (Dynamic Link Library) file responsible for managing security-related tasks such as user authentication and access control.

Why is lsm.dll missing?

The lsm.dll error can occur due to several reasons including malware infection that corrupts system files accidental deletion during software installation or uninstallation or incompatible updates that cause the file to become corrupted or missing.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

  1. Download the latest version of Visual C++ Redistributable from Microsoft’s official website (Link).
  2. Run the downloaded installer as an administrator.
  3. Follow the on-screen instructions to complete the installation process.

Method 2: Run SFC /scannow command

  1. Press Windows key + X and select “Command Prompt (Admin)” or “PowerShell (Admin).”
  2. Type the following command and press Enter:



    3. `sfc /scannow`

  3. Wait for the system scan to complete. The computer may restart automatically after the process is finished.

Method 3: Update System Drivers

  1. Press Windows key + X and select “Device Manager” from the list.
  2. Locate the device with the missing lsm.dll file right-click on it and choose “Update Driver.”
  3. Select “Search automatically for updated driver software” and follow the on-screen instructions to complete the update process.

Conclusion

By following the methods outlined above you should be able to resolve the lsm.dll missing error in your Windows operating system. If the problem persists after trying these solutions it may be necessary to consider reinstalling the affected application or seeking professional assistance.

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