What is taskhostw.exe?

The genuine taskhostw.exe file is a software component of Windows service start manager by Microsoft.
Taskhostw.exe is part of the Windows 10 operating system, and starts DLL-based Windows services when the computer boots up. Thus, Windows 10 uses the taskhostw.exe file as a host for processes that execute as part of a DLL file rather than through an EXE. Like an executable DLL, a DLL contains executable code and resources that can be shared. This host process for Windows tasks indicates the Windows version, since the file name under Windows 7 is taskhost.exe and under Windows 8 taskhostex.exe. To see all the DLL's that have been loaded by taskhostw.exe, open a cmd window and enter the command tasklist /M /FI "IMAGENAME eq taskhostw.exe".

TaskHostW stands for Task's Host for Windows

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 taskhostw.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.

Click to Run a Free Scan for taskhostw.exe related errors

Taskhostw.exe file information

The process known as Host Process for Windows Tasks belongs to software Microsoft Windows Operating System by Microsoft (

Description: The original taskhostw.exe is an important part of Windows and rarely causes problems. Taskhostw.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 71,792 bytes (71% of all occurrences), 71,280 bytes or 71,848 bytes. 
The taskhostw.exe file is a Microsoft signed file. The program is not visible. Therefore the technical security rating is 12% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with taskhostw.exe, you can do the following:

Recommended: Identify taskhostw.exe related errors

If taskhostw.exe is located in a subfolder of the user's profile folder, the security rating is 80% dangerous. The file size is 1,576,960 bytes (50% of all occurrences) or 1,379,328 bytes. There is no description of the program. The program has no visible window. Taskhostw.exe is not a Windows core file. Taskhostw.exe is able to monitor applications.

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

Host Process for Windows Tasks or taskhostw.exe (microsoft)
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Best practices for resolving taskhostw issues

A clean and tidy computer is the key requirement for avoiding problems with taskhostw. 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 taskhostw.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

taskhostw.exe [all]