How to Fix dllhost.exe application error in Windows 10 [Steps]

What is ‘dllhost.exe application error’ in Windows 10/11?

In this article, we are going to discuss on How to fix dllhost.exe application error in Windows 10/11. You will be guided with easy steps/methods to resolve the issue. Let’s starts the discussion.

‘dllhost.exe application error’ in Windows 10/11: dllhost.exe is legitimate executable file and associated with Microsoft Windows Operating System. This file runs in background which is also known as COM Surrogate. It is responsible for showing thumbnails processing images, videos, and other files and is also responsible for helping File Explorer to function and so on. If dllhost.exe COM Surrogate crashes, you may see error saying ‘COM Surrogate has stopped working’.

Several users reported they faced dllhost.exe application error on their Windows 10/11 computer when they tried to open any program. This issue indicates you are unable to open and use certain applications in Windows computer due to dllhost.exe application error. There could be several reasons behind the issue including corruption in system files or registry, malware or viruses infections in computer, outdated/corrupted Windows OS update, and other issues.

This issue can also be occurred due to problematic Windows update installed, bad device drivers installed, issue with hard drives, incorrect system settings, and other issues. It is possible to fix the issue with our instructions. Let’s go for the solution.

How to fix dllhost.exe application error in Windows 10/11?

Method 1: Fix dllhost.exe application error with ‘PC Repair Tool’

‘PC Repair Tool’ is easy & quick way to find and fix BSOD errors, DLL errors, EXE errors, problems with programs/applications, malware or viruses infections in computer, system files or registry issues, and other system issues with just few clicks.

Method 2: Update Windows OS

Updating Windows OS to latest version can resolve the issue.

Step 1: Open ‘Settings’ App in Windows PC via Windows Search Box and go to ‘Update & Security > Windows Update’ and click ‘Check for updates’ button

Step 2: Download and install all available updates in computer and once update, restart your computer and check if the issue is resolved.

Method 3: Run SFC scan and DISM scan

You can run SFC scan and DISM scan in computer to repair corruption in system files and system image in order to fix the issue.

Step 1: Type ‘cmd’ in Windows Search Box and press ‘SHIFT + ENTER’ keys on keyboard to open ‘Command Prompt as Administrator’

Step 2: Type following commands and hit ‘Enter’ keys after each to execute. Once executed, restart your computer and check if the issue is resolved.

sfc /scannow

DISM /Online /Cleanup-Image /RestoreHealth

Method 4: Perform System Restore

You can perform System restore to restore your computer to valid restore point according to date & time when there was no issue at all in computer.

Step 1: Press ‘Windows + R’ keys on keyboard, type ‘rstrui’ in ‘Run’ window and hit ‘Ok’ button to open ‘System Restore’ app

Step 2: Click ‘Next’, select a valid restore point and click ‘Next > Finish’ to start restoring process and once finished, check if the issue is resolved.

Method 5: Change your performance settings

Step 1: Open ‘Control Panel’ in Windows PC via Windows Search Box and go to ‘System and Security > System > Advanced System Settings’

Step 2: In the opened ‘System Properties’, click ‘Advanced’ and under ‘Performance’, and click ‘Settings’ button

Step 3: Open ‘Data Execution Prevention’ tab and check ‘Turn ON DEP for all programs and services except those I select’, click ‘Add’

Step 4: Navigate to ‘C:\Windows\System32\dllhost.exe’ or ‘C:\Windows\SysWOW64\dllhost.exe’ path, select ‘dllhost.exe’ and add it to the exception list, and then hit ‘Apply > Ok’ button to save the changes. Once done, check if the issue is resolved.

Method 6: Check for hard drives errors

Step 1: Open ‘This PC’ and go to your Windows installation drive, right-click it and select ‘Properties’

Step 2: Click ‘Tools’ tab and select ‘Check Now’ under ‘Error-Checking’. Follow on-screen instructions to finish scanning and once done, check if the issue is resolved.

Conclusion

I am sure this post helped you on How to fix dllhost.exe application error in Windows 10/11 with easy ways. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.