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{{Short description|Differences and similarities between Windows Vista and Windows XP}}
{{Use mdy dates|date=October 2024}}
{{Windows XP}}
{{Windows Vista}}
==Compatibility==
Windows Vista faces [[backward compatibility]] problems with many of the [[video game|games]] and utility programs that work in Windows XP. As of
==Performance==
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Another test was performed by ''[[Tom's Hardware]]'' in January 2007.<ref>[http://www.tomshardware.com/reviews/xp-vs-vista,1531.html Windows XP vs. Vista: The Benchmark Rundown: Is Windows Vista Faster Than XP?], Tom's Hardware</ref> Applications such as ''[[Unreal Tournament 2004]]'' and the graphics [[benchmarking]] suite SPECviewperf 9.03 suffered heavily from the lack of support for the [[OpenGL]] graphics library under Vista. They reached the conclusion that Windows Vista clearly is not a great new performer when it comes to [[Execution (computing)|executing]] single applications at maximum speed. On the other hand, they did not find evidence that Windows Vista's [[Desktop Window Manager]] (DWM) consumes more energy than Windows XP's window manager. All of the tests were performed on a computer with a 2.93 GHz [[Intel Core 2 Extreme]] X6800 processor, 2× 1024 MB DDR2-800 [[random-access memory|RAM]], HIS Radeon X1900XTX IceQ3 [[graphics card]], 150 GB [[Western Digital]] WD1500ADFD [[hard disk drive|hard drive]] and a [[Gigabyte Technology|Gigabyte]] GA-965P-DQ6 [[motherboard]].
==Security==
Security was a top priority during [[Development of Windows Vista|Windows Vista development]]. In Windows XP, every user is set up as an [[Superuser#Windows NT|administrator]] by default (unless added through Computer Management). As a result, most home users ran all their software with Administrator access. However, this left most users unwittingly open to potential security threats, such as hacking and [[malware]] downloads. A large amount of existing software doesn't run well as a standard user, due to developers not implementing the [[principle of least privilege]] in their design and testing. For example, many poorly written applications often assume incorrectly that they will have read and write access to the entire filesystem and system [[Windows Registry|Registry]].<ref>[http://channel9.msdn.com/ShowPost.aspx?PostID=288259 UAC - What. How. Why.], Channel9</ref> Denying such an application access to any of these assumed rights can cause the application to fail. Sometimes, a person logged on as a standard user under Windows XP can't perform user-specific tasks such as changing the [[system clock]] and calendar, changing the computer's [[time zone]], or changing the computer's [[power management]] settings due to so-called "LUA (Least-Privilege User Account) bugs".<ref>{{cite web|url=https://technet.microsoft.com/en-us/magazine/cc160944.aspx|publisher=[[Microsoft]]|title=Problems of Privilege: Find and Fix LUA Bugs|date=August 2006|author=Aaron Margosis}}</ref> <!-- Image with inadequate rationale removed: [[Image:User Account Control.png|thumb|UAC credentials dialog]] --> [[User Account Control]] in Windows Vista improves this by limiting [[application software]] to standard user privileges until an administrator authorizes an increase in privilege level. In this way, UAC prevents users from making inadvertent changes to system settings and locks down the computer to prevent unauthorized applications from installing or performing malicious actions. Windows Vista is able to work around many LUA bugs in third-party applications with its file and Registry virtualisation feature, as well as application compatibility [[Shim (computing)|shims]]. [[Internet Explorer 7]]'s Protected Mode utilizes User Account Control to isolate IE from other applications and prevent it from writing content to any ___location, except the ''Temporary Internet Files'' folder. Internet Explorer 7 is available for XP, but does not support Protected Mode on XP. Windows Vista also includes [[Windows Defender]], a spyware scanning and removal tool that is also available for Windows XP for free. Enterprise and Ultimate [[Windows Vista editions|editions of Windows Vista]] include [[BitLocker Drive Encryption]], which aims to help protect data in the case of stolen devices.
Vista implements [[address space layout randomization]], that makes it considerably more difficult for malicious code to exploit [[Return-to-libc attack]]s 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.<ref>{{cite web|url=https://www.blackhat.com/presentations/bh-usa-06/BH-US-06-Marinescu.pdf|title=Windows Vista Heap Management Enhancements|author=Adrian Marinescu|publisher=[[Microsoft]]|date=2006-08-03|accessdate=2008-10-10}}</ref>
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{{clear}}
The firewall in Vista has been rewritten, allowing both outbound as well as inbound traffic to be blocked.<ref>{{cite web | url=https://technet.microsoft.com/nl-nl/library/cc755158(WS.10).aspx | title=What's New in Windows Firewall with Advanced Security | date=July 2, 2012 }}</ref>
{|
! Feature
! Windows XP
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! Windows 8.x
! Windows 10
!Windows 11
|-
| [[Windows Defender]]
| {{Maybe|Available as a free download<ref>[http://www.microsoft.com/athome/security/spyware/software/default.mspx Windows Defender], Microsoft</ref>}}
| colspan="2" {{Yes}}
| colspan="
|-
| [[Windows Firewall]]
| colspan="
|-
| [[Windows Security Center]]
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| {{Yes}}
| colspan="2" {{Yes|Yes (replaced by [[Action Center]])}}
| colspan="2" {{Yes|Yes (replaced by [[Security and Maintenance]])}}
|-
| [[BitLocker Drive Encryption]]
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| colspan="2" {{Maybe|Yes (Ultimate and Enterprise editions only)}}
| {{Maybe|Yes (Pro and Enterprise editions only)}}
| colspan="2" {{Maybe|Yes (Pro, Education and Enterprise editions only)}}
|-
| [[Parental controls]]
| {{Maybe|Some ([[Internet Explorer]] allows parental control of web browsing)}}
| colspan="2" {{Yes}}
| colspan="
|-
| [[User Account Control]]
| {{No}}
| colspan="
|-
| [[Data Execution Prevention]]
| {{Maybe|Yes (starting with SP2)}}
| colspan="
|}
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In most editions of Windows Vista, the default theme is [[Windows Aero]]. Aero offers translucent window effects, as well as live thumbnails, animated transitions and [[Flip 3D]]. However, it requires a compatible graphics card, with a WDDM driver, [[DirectX]] 9 support and [[32-bit]] color; otherwise, Windows Vista is displayed using the "Windows Vista Basic" visual style.
== References ==▼
{{Reflist|30em}}▼
==See also==
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*[[Features new to Windows Vista]]
*[[Features removed from Windows Vista]]
▲== References ==
▲{{Reflist|30em}}
{{Microsoft Windows}}
[[Category:Windows Vista]]
|