In normal circumstances, the only time this partition is accessed is when the computer is booting, or when there is a Windows update that changes files in this area which is a legitimate reason to access this section of the drive.
The area can be a potential security issue, because a hexadecimal editor such as dskprobe. However, as with other full disk encryption technologies, BitLocker is vulnerable to a cold boot attack, especially where TPM is used as a key protector without a boot PIN being required too.
A variety of other privilege-restriction techniques are also built into Vista. An example is the concept of "integrity levels" in user processes, whereby a process with a lower integrity level cannot interact with processes of a higher integrity level and cannot perform DLL—injection to a processes of a higher integrity level. The security restrictions of Windows services are more fine-grained, so that services especially those listening on the network have no ability to interact with parts of the operating system they do not need to.
Obfuscation techniques such as address space layout randomization are used to increase the amount of effort required of malware before successful infiltration of a system. Code Integrity verifies that system binaries have not been tampered with by malicious code.
As part of the redesign of the network stack, Windows Firewall has been upgraded, with new support for filtering both incoming and outgoing traffic. Advanced packet filter rules can be created which can grant or deny communications to specific services. The bit versions of Vista require that all device drivers be digitally signed, so that the creator of the driver can be identified.
While much of the focus of Vista's new capabilities has highlighted the new user-interface, security technologies, and improvements to the core operating system, Microsoft also adding new deployment and maintenance features:. Windows Vista includes a large number of new application programming interfaces. Chief among them is the inclusion of version 3. Version 3. These technologies are also available for Windows XP and Windows Server to facilitate their introduction to and usage by developers and end users.
There are also significant new development APIs in the core of the operating system, notably the completely re-architected audio, networking, print, and video interfaces, major changes to the security infrastructure, improvements to the deployment and installation of applications "ClickOnce" and Windows Installer 4.
There are some issues for software developers using some of the graphics APIs in Vista. Games or programs which are built solely on the Windows Vista-exclusive version of DirectX , version 10, cannot work on prior versions of Windows, as DirectX 10 is not available for previous Windows versions.
Also, games which require the features of D3D9Ex, the updated implementation of DirectX 9 in Windows Vista are also incompatible with previous Windows versions. However, hardware overlay is not supported, because it is considered as an obsolete feature in Vista. The "Hardware profiles" startup feature has also been removed, along with support for older motherboard technologies like the EISA bus, APM and Game port support though on the bit version game port support can be enabled by applying an older driver.
Windows Vista does not include the " Luna " visual theme, created in for Windows XP, or most of the classic color schemes which have been part of Windows since the Windows 3.
Also the caption buttons are changed. Only Windows Classic can still be found in that operating system. Windows Vista ships in six different editions. These are roughly divided into two target markets, consumer and business, with editions varying to cater for specific sub-markets. For consumers, there are four editions, with three available for economically more developed countries. Windows Vista Home Basic is intended for budget users and is available only in emerging markets.
Windows Vista Home Premium covers the majority of the consumer market, and contains applications for creating and using multimedia. The home editions cannot join a Windows Server domain.
For businesses, there are three editions. Windows Vista Business is specifically designed for small and medium enterprises small and medium-sized businesses, is only available to customers participating in Microsoft's Microsoft Software Assurance Software Assurance program. Windows Vista Ultimate contains the complete feature-set of both the Home and Business combination of both Home Premium and Enterprise editions, as well as a set of Windows Ultimate Extras , and is aimed at enthusiasts.
All editions except Windows Vista Starter support both bit x86 and bit x64 processor architectures. Similar sanctions exist in South Korea. A Vista Capable or equivalent PC is capable of running all editions of Windows Vista although some of the special features and high-end graphics options may require additional or more advanced hardware. Windows Vista's Basic and Classic interfaces work with virtually any graphics hardware that supports Windows XP or ; accordingly, most discussion around Vista's graphics requirements centers on those for the Windows Aero interface.
Microsoft offers a tool called the Windows Vista Upgrade Advisor to assist Windows XP and Vista users in determining what versions of Windows their machine is capable of running. Although the installation media included in retail packages is a bit DVD, customers needing a CD-ROM or customers who wish for a bit install media are able to acquire this media through the Windows Vista Alternate Media program.
The Ultimate edition includes both bit and bit media. The digitally downloaded version of Ultimate includes only one version, either bit or bit, from Windows Marketplace. Maximum limits on physical memory RAM that Windows Vista can address vary depending on the both the Windows version and between bit and bit versions. The following table specifies the maximum physical memory limits supported:. The total maximum number of logical processors of a PC that Windows Vista supports is: 32 for bit; 64 for bit.
Microsoft occasionally releases service packs for its Windows operating systems to fix bugs and add new features. The initial deployment of the service pack caused a number of machines to continually reboot, rendering the machines unusable.
This caused Microsoft to temporarily suspend automatic deployment of the service pack until the problem was resolved. The synchronized release date of the two operating systems reflected the merging of the workstation and server kernels back into a single code base for the first time since Windows Initially, the service pack only supported 5 languages — English, French, Spanish, German and Japanese.
Support for the remaining 31 languages was released on April 14, A whitepaper published by Microsoft near the end of August outlined the scope and intent of the service pack, identifying three major areas of improvement: reliability and performance, administration experience, and support for newer hardware and standards.
One area of particular note is performance. Areas of improvement include file copy operations, hibernation, logging off on domain-joined machines, JavaScript parsing in Internet Explorer, network file share browsing, Windows Explorer ZIP file handling, and Windows Disk Defragmenter. The ability to choose individual drives to defragment is being reintroduced as well. Service Pack 1 introduced support for some new hardware and software standards, notably the exFAT file system, Booting a system using Extensible Firmware Interface on x64 systems was also introduced; this feature had originally been slated for the initial release of Vista but was delayed due to a lack of compatible hardware at the time.
Two areas have seen changes in SP1 that have come as the result of concerns from software vendors. One of these is desktop search; users will be able to change the default desktop search program to one provided by a third party instead of the Microsoft desktop search program that comes with Windows Vista, and desktop search programs will be able to seamlessly tie in their services into the operating system.
These changes come in part due to complaints from Google , whose Google Desktop Search application was hindered by the presence of Vista's built-in desktop search. In June , Google claimed that the changes being introduced for SP1 "are a step in the right direction, but they should be improved further to give consumers greater access to alternate desktop search providers".
The other area of note is a set of new security APIs being introduced for the benefit of antivirus software that currently relies on the unsupported practice of patching the kernel see Kernel Patch Protection.
An update to DirectX 10 , named DirectX Graphics cards will be required to support DirectX SP1 includes a kernel An updated downloadable version of the Group Policy Management Console was released soon after the service pack. SP1 enables support for hotpatching, a reboot-reduction servicing technology designed to maximize uptime. It works by allowing Windows components to be updated or "patched" while they are still in use by a running process. Hotpatch-enabled update packages are installed via the same methods as traditional update packages, and will not trigger a system reboot.
In addition to a number of security and other fixes, a number of new features have been added. Windows Vista and Windows Server share a single service pack binary, reflecting the fact that their code bases were joined with the release of Server News and Special Offers occasional. Windows Vista. Techopedia Explains Windows Vista. What Does Windows Vista Mean? Share this Term. Tech moves fast! Stay ahead of the curve with Techopedia!
Join nearly , subscribers who receive actionable tech insights from Techopedia. Vista is also not yet available for consumer download, although Microsoft has said that it will be available to MSDN and TechNet subscribers sometime this month. Allchin believes that the adoption curve for Vista among consumers will be "fast and immediate. Allchin also touted Vista's improved security, with features such as Address Space Layer Randomization, which makes each Vista machine sufficiently different that the chance for worms to jump from one Vista PC to another is "much smaller.
Vista has been five years in the making, and represents the longest lag time between releases of Windows in Microsoft's history. The company has said that it does not expect the development of the next release of Windows to take nearly as long as this one did.
Although Microsoft is not committing to timetables, company officials have said that they are targeting a time frame closer to two years than five years for the next operating system release. The next release will most likely represent a more incremental change than does Windows Vista, which includes major changes to the user interface, as well as highly revamped security and networking capabilities.
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