Obviously it still erases the character to the left of your cursor. But when you’re viewing folders in Windows Explorer, Backspace no longer moves you “up” a folder in the hierarchy like it did in ...
In VIM type ":set bs=eol,indent,start" to get the backspace key to work like you probably expect it to. To make it permanent so you don't have to type it in everytime, put that line (without the colon ...