I had a bit of an issue with a Win10 upgrade from Win7 for my wife’s laptop. Nothing short of a full reload of Win10 would stop FileExplorer from resetting and restarting every few seconds. This did not allow me to use Control Panel, either. Settings worked.
So, it told me that it removed Thunderbird and Firefox.
It ALSO removed all the AppData files (like all of her email). (more…)