What is osk.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the osk.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Osk.exe file information

Windows Task Manager with osk
Osk.exe process in Windows Task Manager

The process known as On-Screen Keyboard or Accessibility On-Screen Keyboard belongs to software Microsoft Windows Operating System by Microsoft (

Description: The original osk.exe is an important part of Windows and rarely causes problems. The osk.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 8/7/XP are 215,552 bytes (27% of all occurrences), 216,576 bytes and 7 more variants. 
The program has a visible window. Osk.exe is a Microsoft signed file. Osk.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 17% dangerous.

Recommended: Identify osk.exe related errors

Important: Some malware disguises itself as osk.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the osk.exe 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 osk issues

A clean and tidy computer is the key requirement for avoiding problems with osk. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the osk.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

osk.exe [all]