after uninstalling via Objects, WindowsBlind11, uninstall and rebooting:
WB11 no longer appears in Ctrl Panel, Programs
But it still shows in Objects as "Update"
and I get a message about unable to auto update.
I'll try one more time to update. This time it switches to installing WB11.
Will try it one last time and then I'll ask how to completely manually kill WB11 for now.