The ehExtHost.exe file runs non-Microsoft Media Center bolt-on or add-on applications in a separate environment so that even if they are not well written, the user will still have access to the Media Center. This means that even if the entire process crashes, the user can still access and view the Media Center. Certain add-ons or extension applications are programs installed on the hard drive.


File name: EhExtHost.exe
Title: Media Center Extensibility Host
Purpose: Allows access to Media Center
Company: Microsoft
Rating: 4 stars based on 14 votes
File scan: Click here to run a file scan

Some of the downloaded programs possess the ability to attach with the Media Center for recognition purposes, and to allow the newly installed software or other applications to properly integrate.

Possible causes of EhExtHost.exe errors

These errors are frequently caused by conflicts with the file or installation profile, misuse of the file or respective directories, or a malicious attack on the system.

  • When conflicts arise on the profile or with the file, the application may be unable to transmit data between the necessary files.
  • When a file or directory is misused or damaged, the application as a whole may be unable to load.
  • Malicious attacks or infections on the system may render the entire system frozen or unable to perform any necessary computing functions.
Regardless of the cause, determining the best solution should be the first action step when noticing any system-related computer errors.

Is EhExtHost.exe a dangerous file (virus, malware, spyware)?

In most cases, the file is considered to be safe. However, files do become corrupt at times and some malicious files are disguised to represent known, secure system files. When that happens, they can be very difficult to detect and remove, but using a comprehensive system scan usually detects them and allows you to safely remove them.

Known EhExtHost.exe error messages

EhExtHost.exe error

Common error messages users may see include:

  • File not found: EhExtHost.exe
  • Cannot find file: EhExtHost.exe
  • Device not recognized missing EhExtHost.exe file
As the file is associated with USB connections to the computer, a keyboard, mouse, or other piece of hardware connected to the machine through a USB cable may be causing the error or may be unable to function properly due to the error.

Should I stop the EhExtHost.exe task or process within the Task Manager?

Unless you have experience managing the processes and tasks on your machine, it is best to allow a system scanner or registry scanner to handle those tasks. Many of the tasks are required for performing specific operations on your machine and removing them may cause your program or entire computer to malfunction or reboot.

Should I download a new copy of the EhExtHost.exe file?

The only time you should ever download a new version of a system file is when it comes through an application update or from the publisher directly. Be very cautious when downloading system files from third-party websites as they may contain additional software that you would install without knowing. This could cause an even larger issue than the error you are getting from this file!
WARNING: If you already downloaded a new file from an external site,
Click Here to run a system scan immediately!

Best way to fix EhExtHost.exe errors

When these errors occur, verify if any new hardware or software has been added. If so, simply removing the new hardware or software may resolve the issue. If not, follow the steps below.

  1. Scan for any driver updates for new equipment. If new equipment or programs have been loaded, they may require updated drivers. Download new, secure drivers and perform a clean system restart.
  2. Download and install updates for the operating system. Regardless of the operating system version you are using, it is always considered good practice to install the latest security updates.
  3. Use anti-virus and anti-malware applications. Most virus scanners will protect your machine from basic threats. To increase your protection, use a malware scanner as well.
If the above steps fail to resolve the issue, it may be due to outdated hardware or software.

More information about EhExtHost.exe

Uninstalling and reinstalling or reseting Windows Media Center may provide a more long-term solution for these errors as well.

Turn Windows Features On or Off

To uninstall Windows Media Player:

  1. Click on ‘Start’ and search for ‘Turn Windows features on or off’
  2. Click on ‘Turn Windows features on or off’
  3. Find ‘Media Features’ and un-check ‘Windows Media Player’
  4. Restart your computer

To reinstall Windows Media Player, follow the same steps (just re-check the box):

  1. Click on ‘Start’ and search for ‘Turn Windows features on or off’
  2. Click on ‘Turn Windows features on or off’
  3. Find ‘Media Features’ and re-check ‘Windows Media Player’
  4. Restart your computer

This should re-configure the necessary system files and fix the problem. For more information, check out

If your system is presenting you with a ‘No Disk’ error, the solution may be as easy as downloading and installing the latest HP Image Zone Update. Read more about this in the HP Support document.