How do I set the permissions on the install folder to all users?

To ensure that non-Administrator users have permission to run Kadoe Client, follow the steps below. 

In Windows Explorer, navigate to the installation location in Windows Explorer (by default, C:\KADOE). 

Right-click on the KADOE folder and choose Properties.

A KADOE Properties window will open

Click the Security tab

Under Group or user names, select Users

Then, under Permissions for Users, against the Full Control permission, ensure that the Allow checkbox is ticked.