Issue: How to Fix “Dllhost.exe not found” Error on Windows?
My PC often throws an error “Dllhost.exe not found.” It shows up under various conditions, for example, when trying to launch apps or remove some useless content. When it shows up, the process is not being executed and the system freezes. I have no idea why this is happening. Could someone please help?
“Dllhost.exe not found” is a Windows OS specific bug, which may occur due to the corrupted, damaged or accidentally deleted Dllhost.exe file. The original Dllhost.exe file belongs to the Microsoft Windows Operating System and is known as COM surrogate. It runs a process on Task Manager continually, which is responsible for the smooth performance of the DLL based applications, controls the operations in Internet Information Services (IIS), and prepares the .NET runtime for loading. The original Dllhost.exe file is located in the C:\\Windows\\System32 or C:\\Windows\\winsxs directory.
Unfortunately, but the Dllhost.exe file seems to be extremely vulnerable by various system’s changes and malware infections. Many people reported diverse errors regarding this file, one of which is “Dllhost.exe not found.” You may also get the following error messages related to this file: “Dllhost.exe Application Error,” “Dllhost.exe is not a valid Win32 application,” “Dllhost.exe failed,” “Faulting Application Path: dllhost.exe,” and similar. Usually, the problem may occur due to missing Windows updates or corrupted Windows update files. Therefore, we would recommend installing Windows updates or, if you have recently installed them, remove the installed updates and check if that helps. For this purpose, you should:
- Press Windows key + I and select Update & security
- Press Check for Updates
- Wait till the Windows Update dialog box appears. If there are any available updates, select the Install Updates button.
In case the “Dllhost.exe not found” error occurred after the installation of the updates, you can uninstall updates or fix the error using Windows System File Checker. To remove the Updates, follow these steps:
- Press Windows key + I and select Update & Security
- Click Update History link and select Uninstall Updates
- Select the update that you have installed right before the “Dllhost.exe not found” error occurred and click Uninstall
- Reboot your PC.
If that did not help, you can fix damaged Windows system files with the help of Reimage optimization utility or run Windows System File Checker:
- Right-click on Windows key and select Command Prompt (Admin)
- Type sfc /scannow and hit Enter
- Wait while Windows System File starts and finishes scanning for the system file errors.
IMPORTANT: although the original Dllhost.exe is a secure process of Windows system, it is often misused by hackers to disguise malicious software. Security experts have found the following malicious programs named as Dllhost.exe: WORM_INJECT.OB, WORM_VB.GZP, W32.SillyFDC, and W32.Fontra.
If Dllhost.exe file is located in the subfolder of the user’s profile, C:\\Windows, C:\\Program Files, C:\\Windows\\System32 or subfolder of Windows folder for temporary files, it’s security rating is more than 60% dangerous. It means that malware is hiding in your operating system. Therefore, to fix “Dllhost.exe not found” error, you’ll have to launch a scan with a professional anti-malware program, for example, Reimage.
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