Uninstall the latest version and download the standalone version from here : https://helpx.adobe.com/lightroom/kb/lightroom-downloads.html?PID=7252638
Also I would like to tell you that 6.2.1 is also a standalone version and not the creative cloud version.
Can I know what made you feel that you do not have the standalone version of Lightroom ?
THANK YOU..TOO MANY PROBLEMS WITH YOUR UPDATED VERSION
You are welcome ans I understand your concern completely