Features new to Windows Vista Windows Vista, Internet Explorer operates in a special "Protected Mode", which runs the browser in a security sandbox that has no access to the rest of the operating system or file system, except the "Temporary Internet Files" folder. This feature aims to mitigate problems whereby newly discovered flaws in the browser (or in ActiveX controls hosted inside it) allowed hackers to subversively install software on the user's computer (typically spyware). Internet Explorer 7 in Windows Vista also exclusively supports Advanced Encryption Standard (AES) key lengths up to 256 bits outlined in RFC 3268 and certificate revocation checking using Online Certificate
Management features new to Windows Vista applications as part of the operating system itself. The setup process for Windows Vista has been completely rewritten and is now image-based. Setup is now based on Windows Preinstallation Environment (WinPE) version 2.0, which, amongst other features, runs the entire setup process in a graphical environment, as opposed to the text-based environments of previous versions. Visually, the user interface resembles Windows Vista itself, using ClearType fonts and the Aero visual style, and enabling the use of a mouse. Prior to copying the setup image, users can graphically resize partitions. Support for loading third-party disk drivers has improved. Whereas Windows XP