EOS Webcam Utility Broken / Won't Re-Install on Windows 11 (System privileges Issue)

[Strap]

Hey everyone! First post here,

Been using Webcam Utility Pro for a couple months but around early December the program stopped running on my PC. I removed it and have attempted to reinstall many times, always getting this error message: 

Service 'EWCService' (EWCService.exe) failed to start. Verify that you have sufficient privileges to start system services.

I've verified system privileges aren't the cause of my issue -- it's strange that it worked on my device before and isn't now. 

My device: HP Pavilion 27 All-in-One (Windows 11 23H2)

This seems like this a common issue and I'm creating this thread to amplify the need for a fix. I've tried everything I can think of but if anyone knows a solution, it would be super helpful because I need this thing running for work. Thanks! 

[Waddizzle]

Did you recently upgrade your OS from Windows 10 to Windows 11?This error message is common among users who upgrade their operating systems. 

I suggest deleting and reinstalling the Canon apps. 

[Strap]

Thanks for the reply! Hm no, I was running Webcam Utility without issue on Windows 11 -- 

The issue may have started when I upgraded to Pro or downloaded v2.3 but I'm not really sure 

I tried deleting and reinstalling but so far no dice 

[Stephen]

Hello, Strap!

Thank you for reaching out!

Regarding the error you encountered:
“Service ‘EWCService’ (EWCService.exe) failed to start. Verify that you have sufficient privileges to start system services.”
Please follow the steps below to troubleshoot the issue:

Steps: Clean Installation

1. Uninstall EOS Webcam Utility
   • Go to Settings → Apps, locate EOS Webcam Utility, and uninstall it.
2. Delete Saved Data
   • Navigate to the following folders and delete them:
     • C:\Users[Your Username]\AppData\Roaming\EOS Webcam Utility
     • C:\Users[Your Username]\AppData\Roaming\EOS-Webcam-Utility
       Note: The “AppData” folder is hidden by default. You may need to enable hidden items in File Explorer by selecting the “View” tab and checking “Hidden items.”
3. Reinstall the Latest Version
   • Download the latest version of EOS Webcam Utility from https://canon.us/ewu and reinstall it.

Please try the above steps and let us know the outcome.

If the problem persists, do not hesitate to contact us again for further assistance. If you’d like one-on-one help, call our team at 1-800-OK-CANON (800-652-2666) weekdays from 9 a.m. to 6 p.m. (ET).

[Strap]

Hey Stephen, appreciate your eyes on this 

I wouldn't have thought to remove the hidden folders, I followed those steps but still wasn't able to reinstall Webcam Utility. 

I called the Canon support number provided and my representative investigated the issue but concluded it's an issue with my OS and/or permissions. So I guess I'll continue messing around with disabling permission settings