Windows 7：修订间差异
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*The [[Welcome Center]] [[Control Panel]] applet from Windows Vista has been renamed to [[Getting Started (Vista)|Getting Started]] featuring less links and no longer opens automatically when Windows 7 boots up. Instead, it is prominently listed at the top of the Start menu. | *The [[Welcome Center]] [[Control Panel]] applet from Windows Vista has been renamed to [[Getting Started (Vista)|Getting Started]] featuring less links and no longer opens automatically when Windows 7 boots up. Instead, it is prominently listed at the top of the Start menu. | ||
*The [[Windows Ultimate Extras]], which were introduced with the Ultimate edition of Windows Vista as an add-on pack that included games, security features and other extras, have been discontinued in the Ultimate edition of Windows 7 and are removed when upgrading from an installation of Windows Vista Ultimate that had the extras installed and the associated Control Panel and Welcome Center entries have also been removed. | *The [[Windows Ultimate Extras]], which were introduced with the Ultimate edition of Windows Vista as an add-on pack that included games, security features and other extras, have been discontinued in the Ultimate edition of Windows 7 and are removed when upgrading from an installation of Windows Vista Ultimate that had the extras installed and the associated Control Panel and Welcome Center entries have also been removed. | ||
=== Windows Security === | |||
Support for encrypting disk drives has been added via the BitLocker to Go functionality. Base BCrypt encryption functions and cryptosystem primitives for [[w:RSA (cryptosystem)|Rivest–Shamir–Adleman]] (RSA), [[w:Digital Signature Algorithm|Digital Signature Algorithm]] (DSA) and [[w:Elliptic-curve cryptography|elliptic curve]]s have been merged into a unified <code>BCryptPrimitives</code> library. | |||
Kerberos authentication now supports sending AES-encrypted pre-authentication requests upon the first Authentication Service request, and can be controlled via group policy. Additional compliance with IETF RFC 1510 has been made through the addition of the <code>KSetup</code> command-line utility, which allows for manually configuring realm settings, user and computer account mappings, password configuration as well as the ability to join an Active Directory domain. A Kerberos logon ticket cache list utility has also been added. | |||
The <code>NLTest</code> command-line tool has been added, and is used to interact with the NetLogon service on an existing server machine, and supports capabilities including (but not limited to) user authentication, querying service details, controlling Secure Channel variables, and Active Directory domain controller and forest management. It is now possible to remotely associate a computer or user account as the principal for a specific machine or device on the current network via the <code>SetSPN</code> utility. | |||
OEMs can now customize the Windows logon screen to include their own branding with custom background images. | |||
=== Windows Setup === | |||
==== Windows Recovery Environment ==== | |||
Setup now installs the [[Windows Recovery Environment]] to a hidden disk partition alongside the rest of the operating system. This allows the boot loader to automatically start WinRE whenever deemed necessary. | |||
==== Windows Anytime Upgrade ==== | |||
Components for higher-level Windows 7 editions are now included as part of the operating system. This improves edition upgrade performance by no longer depending on physical installation media, only requiring a valid license to perform an upgrade. | |||
=== Hardware support === | |||
==== Drift correction ==== | |||
Windows 7 introduces a feature internally known as "drift correction", which resolves issues related to CPU clock circuit timing that can potentially prevent services or the operating system as a whole from starting up correctly. Clock drift/timing issues plague [[Windows Vista|its predecessor]] on Haswell and newer Intel processors.<ref>https://msfn.org/board/topic/177509-windows-vista-intel-haswell-issues-documentation/</ref> | |||
==== Disk drives ==== | |||
Native support for [[Hyper-V]] virtual hard disk (VHD) images, a feature originally exclusive to [[Windows Server 2008]], has been added to Windows 7. Performance improvements have been made to [[w:solid-state drive|solid-state drive]]s, and SSDs are now able to run the TRIM command to erase data blocks that are no longer in use. | |||
AutoPlay on USB storage devices is no longer invoked by default due to security concerns in relation to drive-by malware; applications must now be manually invoked by the user on the relevant device to install new programs. | |||
==== Graphics subsystem ==== | |||
===== Direct3D 11 ===== | |||
Windows 7 includes Direct3D 11, which adds support for Shader Model 5. This brings with it the addition of GPU compute shader capabilities, the ability to run multiple shader routines at once (subroutines), dynamic shader linking (optimizing shaders during runtime) and improved performance with added multithreading support. Textures of up to 16,384 × 16,384 pixels are now supported by Direct3D 11, and meshes can now dynamically increase their level of detail through the use of tessellation, offering smoother surfaces on models with lower polygon counts. Feature levels are now supported by Direct3D 11, allowing the use of older API versions (such as Direct3D 9) while creating a D3D11 device through the WARP API. Graphics resources can now allocate more than 4 GB of video memory, eliminating the 32-bit memory limit present in older Direct3D versions. | |||
===== Desktop Window Manager ===== | |||
The [[Desktop Window Manager]] now makes use of the Direct3D 10.1 feature set, as opposed to D3D9Ex in Vista's implementation. | |||
=== 其他更改 === | === 其他更改 === | ||