Issue when uninstalling a service?

Question

I am trying to uninstall a recently installed service, I am running this in command line:

c:\Windows\Microsoft.NET\Framework\v4.0.30319>installutil.exe /u "C:\inetpub\www
root\xxx\xxx\xxx.exe"

But I am getting this:

The uninstall has completed.
An exception occurred while uninstalling. This exception will be ignored and the
 uninstall will continue. However, the application might not be fully uninstalle
d after the uninstall is complete.

And this:

Removing EventLog source xxx.
An exception occurred during the uninstallation of the System.Diagnostics.EventL
ogInstaller installer.
System.Security.SecurityException: Requested registry access is not allowed.
An exception occurred while uninstalling. This exception will be ignored and the
 uninstall will continue. However, the application might not be fully uninstalle
d after the uninstall is complete.

I have no idea where to begin and I really need to uninstall these so any help is appreciated

Answer 1

I was facing exact same issue.

The issue is resolved by opening the Command Prompt as Administrator.