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 Startup Repair checks for corruption of operating system and other components, such as Boot Configuration Data, disk and file system metadata, the Master Boot Record, and the Windows Registry. Microsoft has stated that the utility is intended to repair over eighty percent of issues. "Package Manager", part of the Windows Vista servicing stack, replaces the previous "Package Installer" (codice_1) and "Update Installer" (codice_2). Microsoft delivers updates for Windows Vista as files and resources only. Package Manager, Windows Update, and the Control Panel item to turn Windows features on and off, all use the Windows Vista servicing stack. Package Manager can