Have you encountered the dismhost.exe file on your Windows computer? Do you believe this executable to be causing problems of high CPU usage on your Windows computer? Many Windows users have been questioning the reputability of dismhost.exe, with some believing it to be malware.

This article will expand what dismhost.exe, its security merits, and outline a few simple troubleshooting methods to resolve the high CPU usage issue if you believe dismhost.exe to be responsible.

What is DismHost.exe?

Dismhost.exe is an executable software program located in your hard drive folder. It is associated with Windows Defender and has probably been on your computer since the day you purchased it. A program is a command-line tool that handles the process of mounting and unmounting Windows Image files while installing important system updates.

While this program is often stated to be a crucial part of Windows’ operating system, some anti-virus programs label it as malware. Although this is most likely due to an accidental download of a dismhost.exe-mimicking file, there are problems with dismhost.exe that lead to high disk and CPU usage.

To function, the program creates multiple copies of itself, which creates multiple file copies in temp folders that lead to high CPU and high disk usage. This issue can also affect your internet bandwidth, slowing down your internet to a virtually inoperable speed.

While these issues can be frustrating, they do not necessarily mean that dismhost.exe is malware. The next section will detail which versions of dismhost.exe are malware and how to identify these versions.

DismHost.exe Malware

If you have the correct version of dismhost.exe downloaded on your computer, then it is not a virus, trojan, or malware. However, many of the high CPU and high disk usage issues that stem from the correct version of dismhost.exe could also be consequences of a virus, trojan, or malware being downloaded onto your computer.

Therefore, it is crucial that you identify whether or not the executable software program downloaded on your computer is the correct version. An easy way to do this is to ensure that the file name is spelt correctly.

If the file on your computer looks like “diismhost.exe” or “disnnhost.exe” or any other slightly misspelt variation of dismhost.exe, then the file is most certainly a virus, trojan, or malware. If you have identified the file on your computer to be malware, then an anti-virus program should be able to take care of the file.

If the file on your computer appears to be the correct version and it is still causing you issues that make your computer unusable, then the next section will detail some troubleshooting methods to resolve this issue.

How to Fix DismHost.exe High CPU/Disk Usage Issues

The way dismhost.exe naturally functions might be causing issues on your computer related to high CPU usage, high disk usage, or even overconsumption of internet bandwidth.

If you have ensured that you have the correct version of dismhost.exe downloaded on your computer, then the troubleshooting methods listed below may resolve any of the issues listed above that you currently face. Make sure you follow these troubleshooting methods as precisely as you can so as to avoid damaging your computer in any way.

1. Disable Superfetch Service

The Superfetch service in Windows 10 pre-loads data into your computer’s memory, which can be a very useful feature but also a feature that results in high CPU usage.

If you are experiencing issues related to high CPU usage on your computer, then disabling the Superfetch service on your computer may resolve these issues. To disable the Superfetch service on your computer, follow these six steps.

  1. Press the Windows key and ‘R’ key to open a ‘Run’ dialog.
  2. In the dialog box, type “services.msc” and click ‘OK’ to continue.
  3. In the ‘Services’ window, navigate to ‘Superfetch’ and double-click it, taking you to the ‘Properties’ window.
  4. In the ‘Properties window, change the ‘Startup type’ to ‘Disabled’ and ‘Service status’ to ‘Stopped’.
  5. Click ‘Apply’ and then ‘OK’ to save your changes.
  6. Reboot your computer and see whether your issues have been resolved.

2. Stop BIT Service

BITS, which stands for Background Intelligent Transfer Service, is a component of Windows 10 responsible for assisting the system and applications during foreground and background downloads and uploads.

The service is considered essential by some and it is not recommended that you disable the service. However, it does create issues with high disk usage on your computer and if these issues are affecting the functionality of your computer, it might be best to simply disable the service. To disable BIT service, follow these six steps.

  1. Press the Windows key. And ‘R’ key to open a ‘Run’ dialog.
  2. In the dialog box, type “services.msc” and click ‘OK’ to continue.
  3. In the ‘Services’ window, navigate to ‘Background Intelligent Transfer Service’ and double-click it to go to its ‘Properties’ window.
  4. In the ‘Properties’ window, change the ‘Startup type’ to ‘Disabled’ and the ‘Service status’ to ‘Stopped’.
  5. Click ‘Apply’ and then ‘OK’ to save your changes.
  6. Reboot your computer and see whether your issues have been resolved.

3. Uninstall DismHost.exe

Finally, if neither of the troubleshooting methods listed above resolves your issue, you can simply uninstall dismhost.exe form your computer.

The way dismhost.exe functions tends to create issues with high CPU usage and high disk usage so if none of the troubleshooting methods listed above worked to resolve your issues, this troubleshooting method will likely do the job. To uninstall dismhost.exe from your computer, follow these five steps.

  1. Open the Control Panel.
  2. Then, choose ‘Uninstall a program’ under ‘Programs’.
  3. Find out the program and right-click it to choose ‘Uninstall’.
  4. Then open ‘C:/Program Files’ and try to find the folder with the name of DISM host servicing process. It should be gone, but if it isn’t…
  5. Open the ‘Registry Editor’ window and navigate to ‘HKEY_LOCAL_MACHINE>Software’.

In Conclusion

If you follow the troubleshooting methods listed above as precisely as possible, then you should be able to resolve any issues of high CPU or high disk usage on your computer. Ensure that there are no viruses, trojans, or malware downloaded onto your computer before moving forward with any of the troubleshooting methods listed above.