Seems to be working fine on my machine. I went to Task Manager, details tab; found explorer.exe (there was exactly 1) and killed it Hit File -> Run New Task;

Seems to be working fine on my machine. I went to Task Manager, details tab; found explorer.exe (there was exactly 1) and killed it Hit File -> Run New Task; Entered "explorer"; hit Enter Switched to Mail and clicked a link in one of the emails - it worked.