Do you have Windows Vista or higher and .NET Framework 4.5 or higher?
yes
Have you extracted all the files? Don't start HDT from a zipped folder.
yes
Try reinstalling / repairing your .NET Framework installation
Have .NET 4.5. and reinstalled it with the same issue
Is there a log entry in the windows event viewer (Windows start menu > control panel > management tool > event viewer > windows log > application)
yes, related to UIAutomationCore.dll
Apparently this issue happens on Win 7 64 bit system with some Flight Simulator as well. I used this fix:
Just started getting this with the new version. Tried clearing my %appdata%\Hearthstone Deck Tracker folder, and that didn't help either.