Hi Scott,I have tried installing AEM into another folder faced the same issue there also.Vish Dhaliwal's solution worked for me. Seems there is some existing issue With Windows 10 touch screen enabled desktop.Found another post with similar issue : issue with OOTB Rich Text Editor (RTE) in 6.3 Pleas...

Getting below error while opening RTE in inline mode in Windows 10 machineBrowser : Google Crome (Version 67.0.3396.99 (Official Build) (64-bit)) & Firefox Quantum(61.0.1 (64-bit)).core.js:20400 An error has occured during execution of the selected action: Cannot read property 'addClass' of null -> ...