How to remove the lskhook virus

Most antivirus programs identify lskhook.dll as malware.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

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Lskhook.dll file information

The process known as LskHook or LanSchool Screen Monitor DLL

appears to belong to software lskhook Dynamic Link Library or LanSchool Teacher or Stoneware or Faronics

by Stoneware or LanSchool Technologies, llc ( or Faronics (

Description: Lskhook.dll is not essential for Windows and will often cause problems. The lskhook.dll file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 53,336 bytes (50% of all occurrences), 75,648 bytes or 52,560 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program is not visible. It is digitally signed. The service has no detailed description. It is not a Windows system file. It is able to record keyboard inputs. Lskhook.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 78% dangerous.

Uninstalling this variant: If you have any problems with lskhook.dll, you may also uninstall the associated program (Start > Control Panel > Uninstall a Program > LanSchool Teacher or Stoneware, Inc.) or consult's Customer Service for advice.

Recommended: Identify lskhook.dll related errors

Important: You should check the lskhook.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving lskhook issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active lskhook process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the lskhook.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

lskhook.dll [all]