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The familiar Start menu, very similar to that found in Windows XP, returns in Vista. Apart from a new overall look and feel, Vista's real changes are inside the operating system: 64-bit addressable memory, searchable file metadata, and improved graphics capabilities.
Like XP, Vista allows multiple users of a single system to have individual accounts. Users can create or change their own passwords and decide whether to share files with others.
An important security change within Vista will be a shift away from the Adminstrator as default. Every user will need to create an account, and those needing Administrator access will need to log in separately. Currently, the default user is Administrator, and this has allowed criminal hackers to attempt to take remote control of Windows XP machines.