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 Accessibility On-Screen Keyboard or On-Screen Keyboard belongs to software Microsoft Windows Operating System by Microsoft (

Description: Osk.exe is an important part of Windows, but often causes problems. The osk.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 646,144 bytes (50% of all occurrences), 215,552 bytes and 8 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 9% dangerous, however you should also read the user reviews.

Recommended: Identify osk.exe related errors

Important: Some malware camouflages itself as osk.exe, for example W32.Virut.CF (detected by Symantec), and Virus:Win32/Virut.BO (detected by Microsoft). 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.


User Comments

On Screen Keyboard, it appears in the task manager if you open On Screen Keyboard
It's the built in On Screen Keyboard that can be accessed from Ease of Access. It's not essential but it is not dangerous.

Summary: Average user rating of osk.exe: based on 1 vote with 2 user comments. One user thinks it's neither essential nor dangerous. One user is not sure about it.

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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 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.

To help you analyze the osk.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

osk.exe [all]