1. Where do QTouch Composer and QTouch Library get installed?
QTouch Composer and library get installed in $Atmel Studio 6.2 installation Folder\extensions\Atmel
2. Why is 'Uninstall' option disabled in Extension Manager?
Windows Vista and above needs Atmel Studio to be started in 'Run as Administrator' mode to uninstall QTouch extensions.
3. Why am I not able to update Extensions through Extension Manager? I am getting an error "Failed to load page 1" after i click Extension Manger
This issue will happen, when you have Internet explorer version 10+ and QTouch Composer 5.2.0.2027 extension installed.
Work around: unisntall QTouch composer version 5.2.0.2027 by running Atmel studio in Administrator mode. Download install the latest version of QTouch composer from extension manager.