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The 64-bit versions of Vista require that all new Kernel-Mode device drivers be digitally signed, so that the creator of the driver can be identified. [77] [78] This is also on par with one of the primary goals of Vista to move code out of kernel-mode into user-mode drivers, with another example bing the new Windows Display Driver Model. [79]
All 32-bit editions of Windows Vista, excluding Starter, support up to 4 GB of RAM. The 64-bit edition of Home Basic supports 8 GB of RAM, Home Premium supports 16 GB, and Business, Enterprise, and Ultimate support 128 GB of RAM. [19] All 64-bit versions of Microsoft operating systems impose a 16 TB limit on address space.
All editions of Windows Vista include a new Windows Vista Basic theme with updated visuals; it is equivalent to Luna of Windows XP in that it does not rely on a compositing window manager. Blurred glass translucencies, light effects, live thumbnails, and window animations of Windows Aero are not available with Windows Vista Basic.
Vista implements address space layout randomization, that makes it considerably more difficult for malicious code to exploit Return-to-libc attacks than on previous versions of Windows, particularly on 64-bit systems. Furthermore, Vista implements heap management enhancements that make it much more difficult to carry out buffer overflow attacks ...
MSSTYLES is a Microsoft file format, that contains the bitmaps and metadata for the Windows XP skinning engine, first introduced in Windows Whistler Build 2250. [2]The engine, in its unmodified state, only fully applies .msstyles files that have been digitally signed by Microsoft, such as Luna or the Zune theme.
x86-64: Windows Vista: Longhorn [3] January 30, 2007 NT 6.0 Windows Vista Starter; Windows Vista Home Basic; Windows Vista Home Premium; Windows Vista Business; Windows Vista Enterprise; Windows Vista Ultimate; 6002 [c] IA-32, x86-64: April 11, 2017 Windows 7: Windows 7 [4] October 22, 2009 NT 6.1 Windows 7 Starter; Windows 7 Home Basic ...
As a result, the decision was made to postpone the introduction of UEFI support to Windows; support for UEFI on 64-bit platforms was postponed until Vista Service Pack 1 and Windows Server 2008 and 32-bit UEFI will not be supported, as Microsoft does not expect many such systems to be built as the market moves to 64-bit processors.
Kernel-mode drivers on 64-bit versions of Windows Vista must be digitally signed; even administrators will not be able to install unsigned kernel-mode drivers. [52] A boot-time option is available to disable this check for a single session of Windows. Installing user-mode drivers will still work without a digital signature.