If the KX3 Utility is running when you attempt to install a new version, you may see a dialog like this:
The Windows operating system won't allow a file to be replaced or deleted if a running program is using that file.
Close the running KX3 Utility before installing the new version.
In some cases, running programs do not appear on the desktop. You may find it necessary to use the Windows Task Manager to forcibly end KX3Utility.exe.
The situation may also be resolved by restarting (rebooting) the operating system, and then use Control Panel Add/Delete programs to uninstall the existing KX3 Utility before installing a new version.
You must have Windows administrator privileges to install the KX3 Utility. Administrative privileges are not required to use the KX3 Utility to install KX3 firmware.