Bill Gates said that a convoluted login screen was a big design flaw for Windows, but he’s not taking credit for it.
The Microsoft co-founder revealed in a speech at a Harvard University fundraiser that forcing users to use the control-alt-delete key combination to log into their PCs was a mistake — one made by IBM, the designers of the reboot combination. Gates went on to explain that the multiple-key command — often called the three-finger salute — was created by David Bradley, an engineer who worked on the original IBM design.