Windows 7 Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009. It is the successor to Windows Vista, released nearly ...

, a major release of the

Microsoft Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for serv ...

operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also in ...

, has been released in several editions since its original release in 2009. Only Home Premium, Professional, and Ultimate were widely available at retailers. The other editions focus on other markets, such as the software development world or enterprise use. All editions support 32-bit

IA-32 IA-32 (short for "Intel Architecture, 32-bit", commonly called i386) is the 32-bit version of the x86 instruction set architecture, designed by Intel and first implemented in the 80386 microprocessor in 1985. IA-32 is the first incarnation of ...

CPUs and all editions except Starter support 64-bit

x64 x86-64 (also known as x64, x86_64, AMD64, and Intel 64) is a 64-bit version of the x86 instruction set, first released in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging mo ...

CPUs. 64-bit installation media are not included in Home-Basic edition packages, but can be obtained separately from windows. According to Microsoft, the features for all editions of Windows 7 are stored on the machine, regardless of which edition is in use. Users who wish to upgrade to an edition of Windows 7 with more features were able to use

Windows Anytime Upgrade Windows Anytime Upgrade (Add Features to Windows) is a discontinued service by Microsoft introduced in Windows Vista that facilitated upgrades across successive editions of Windows Vista. Prices for upgrades purchased through Windows Anytime Upg ...

to purchase the upgrade and to unlock the features of those editions, until it was discontinued in 2015. Microsoft announced Windows 7 pricing information for some editions on June 25, 2009, and Windows Anytime Upgrade and Family Pack pricing on July 31, 2009.

Main editions

Mainstream support for all Windows 7 editions ended on January 13, 2015, and extended support ended on January 14, 2020. After that, the operating system ceased receiving further support. Professional and Enterprise volume licensed editions have paid Extended Security Updates (ESU) available until at most January 10, 2023. Since October 31, 2013, Windows 7 is no longer available in retail, except for remaining stocks of the preinstalled Professional edition, which was officially discontinued on October 31, 2016. ; : Windows 7 Starter is the edition of Windows 7 that contains the fewest features. It is only available in a

32-bit In computer architecture, 32-bit computing refers to computer systems with a processor, memory, and other major system components that operate on data in 32-bit units. Compared to smaller bit widths, 32-bit computers can perform large calculation ...

version and does not include the

Windows Aero Windows Aero (a backronym for ''Authentic, Energetic, Reflective, and Open'') is a design language introduced in the Windows Vista operating system. The changes made in the Aero interface affected many elements of the Windows interface, includin ...

theme. The desktop wallpaper and visual styles (Windows 7 Basic) are not user-changeable. In the

release candidate A software release life cycle is the sum of the stages of development and maturity for a piece of computer software ranging from its initial development to its eventual release, and including updated versions of the released version to help impro ...

versions of Windows 7, Microsoft intended to restrict users of this edition to running three simultaneous programs, but this limitation was dropped in the final release. This edition does not support more than 2 GB of

RAM Ram, ram, or RAM may refer to: Animals * A male sheep * Ram cichlid, a freshwater tropical fish People * Ram (given name) * Ram (surname) * Ram (director) (Ramsubramaniam), an Indian Tamil film director * RAM (musician) (born 1974), Dutch * ...

. : This edition was available pre-installed on computers, especially

netbook Netbook was a commonly used term that identified a product class of small and inexpensive laptops which were sold from 2007 to around 2013. These machines were designed primarily as cost-effective tools for consumers to access the Inte ...

s or Windows Tablets, through system integrators or computer manufacturers using

OEM An original equipment manufacturer (OEM) is generally perceived as a company that produces non-aftermarket parts and equipment that may be marketed by another manufacturer. It is a common industry term recognized and used by many professional or ...

licenses. ; : Windows 7 Home Basic was available in "

emerging markets An emerging market (or an emerging country or an emerging economy) is a market that has some characteristics of a developed market, but does not fully meet its standards. This includes markets that may become developed markets in the future or were ...

", in 141 countries. Some Windows Aero options are excluded along with several new features. This edition is available in both 32-bit and 64-bit versions and supports up to 8 GB of RAM. Home Basic, along with other editions sold in emerging markets, includes geographical activation restriction, which requires users to activate Windows within a certain region or country. ; : This edition contains features aimed at the home

market segment In marketing, market segmentation is the process of dividing a broad consumer or business market, normally consisting of existing and potential customers, into sub-groups of consumers (known as ''segments'') based on some type of shared charact ...

, such as

Windows Media Center Windows Media Center (WMC) is a defunct digital video recorder and media player created by Microsoft. Media Center was first introduced to Windows in 2002 on Windows XP Media Center Edition (MCE). It was included in Home Premium and Ultimate e ...

, Windows Aero and multi-touch support. It was available in both 32-bit and 64-bit versions. ; : This edition is targeted towards enthusiasts, small-business users, and schools. It includes all the features of Windows 7 Home Premium, and adds the ability to participate in a

Windows Server domain A Windows domain is a form of a computer network in which all user accounts, computers, printers and other security principals, are registered with a central database located on one or more clusters of central computers known as domain controlle ...

. Additional features include support for up to 192 GB of RAM (increased from 16 GB), operating as a

Remote Desktop In computing, the term remote desktop refers to a software- or operating system feature that allows a personal computer's desktop environment to be run remotely off of one system (usually a PC, but the concept applies equally to a server or a ...

server, location aware printing, backup to a network location,

Encrypting File System The Encrypting File System (EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS that provides filesystem-level encryption. The technology enables files to be transparently encrypted to protect confidential data from attackers ...

, Presentation Mode, Software Restriction Policies (but not the extra management features of AppLocker) and

Windows XP Mode Windows Virtual PC (successor to Microsoft Virtual PC 2007, Microsoft Virtual PC 2004, and Connectix Virtual PC) is a Hardware virtualization, virtualization program for Microsoft Windows. In July 2006, Microsoft released the Windows version f ...

. It was available in both 32-bit and 64-bit versions. ; : This edition targeted the

enterprise Enterprise (or the archaic spelling Enterprize) may refer to: Business and economics Brands and enterprises * Enterprise GP Holdings, an energy holding company * Enterprise plc, a UK civil engineering and maintenance company * Enterpris ...

segment of the market and was sold through volume licensing to companies which have a

Software Assurance Software assurance (SwA) is defined as "the level of confidence that software is free from vulnerabilities, either intentionally designed into the software or accidentally inserted at any time during its lifecycle, and that the software functions ...

(SA) contract with Microsoft. Additional features include support for

Multilingual User Interface Multilingual User Interface (MUI) enables the Internationalization and localization, localization of the user interface of an Application software, application. MUI is provided by Microsoft as an integrated feature of its operating system Windows ...

(MUI) packages,

BitLocker Drive Encryption BitLocker is a full volume encryption feature included with Microsoft Windows versions starting with Windows Vista. It is designed to protect data by providing encryption for entire volumes. By default, it uses the AES encryption algorithm in ...

, and

UNIX Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and ot ...

application support. Not available through retail or

channels, this edition is distributed through SA. As a result, it includes several SA-only benefits, including a license allowing the operating of

diskless node A diskless node (or diskless workstation) is a workstation or personal computer without disk drives, which employs network booting to load its operating system from a server. (A computer may also be said to ''act as a diskless node'', if its disks ...

s (diskless PCs) and activation via

Volume License Key In software licensing, a volume licensing is the practice of selling a license authorizing one computer program to be used on a large number of computers or by a large number of users. Customers of such licensing schemes are typically business, ...

(VLK). ; : Windows 7 Ultimate contains the same features as Windows 7 Enterprise, but this edition was available to home users on an individual license basis. For a while, Windows 7 Home Premium and Windows 7 Professional users were able to upgrade to Windows 7 Ultimate for a fee using Windows Anytime Upgrade if they wished to do so, this service is still available if users want to upgrade to Ultimate from Home Premium or Professional. Unlike Windows Vista Ultimate, the Windows 7 Ultimate does not include the

Windows Ultimate Extras Windows Ultimate Extras were optional features offered by Microsoft to users of the Ultimate edition of Windows Vista and are accessible via Windows Update. Ultimate Extras replaced the market role of Microsoft Plus!, a product sold for prior con ...

feature or any exclusive features as Microsoft had stated.

Special-purpose editions

The main editions also can take the form of one of the following special editions: ; : The features in the N and KN Editions are the same as their equivalent full versions, but do not include

Windows Media Player Windows Media Player (WMP) is the first media player and media library application that was developed by Microsoft for playing audio, video and viewing images on personal computers running the Microsoft Windows operating system, as well as on ...

or other Windows Media-related technologies, such as

and

Windows DVD Maker Windows DVD Maker is a discontinued DVD authoring application developed by Microsoft introduced in Windows Vista, available in the Home Premium and Ultimate editions of Windows Vista for users to create slideshows and videos for playback on media ...

due to limitations set by the European Union and South Korea, respectively. The cost of the N and KN Editions are the same as the full versions, as the Media Feature Pack for Windows 7 N or Windows 7 KN can be downloaded without charge from Microsoft. ;E edition : The features in the E edition are the same as their equivalent full versions, but does not include Internet Explorer due to limitations set by the European Union. The cost of the E edition was cheaper than the full version.

Upgrade editions

In-place upgrade from Windows Vista with Service Pack 1 to Windows 7 is supported if the processor architecture and the language are the same and their editions match (see below). In-place upgrade is not supported for earlier versions of Windows; moving to Windows 7 on these machines requires a clean installation, i.e. removal of the old operating system, installing Windows 7 and reinstalling all previously installed programs.

Windows Easy Transfer Windows Easy Transfer is a specialized file transfer program developed by Microsoft that allows users of the Windows operating system to transfer personal files and settings from a computer running an earlier version of Windows to a computer runn ...

can assist in this process. Microsoft made upgrade

SKU In inventory management, a stock keeping unit (abbreviated as SKU and pronounced or ) is the unit of measure in which the stocks of a material are managed. Or to put it another way; is a distinct type of item for sale, purchased, or tracked in ...

s of Windows 7 for selected editions of Windows XP and Windows Vista. The difference between these SKUs and full SKUs of Windows 7 is their lower price and proof of license ownership of a qualifying previous version of Windows. Same restrictions on in-place upgrading applies to these SKUs as well. In addition, Windows 7 is available as a Family Pack upgrade edition in certain markets, to upgrade to Windows 7 Home Premium only. It gives licenses to upgrade three machines from Vista or Windows XP to the Windows 7 Home Premium edition. These are not full versions, so each machine to be upgraded must have one of these qualifying previous versions of Windows for them to work. In the United States, this offer expired in early December 2009. In October 2010, to commemorate the anniversary of Windows 7, Microsoft once again made Windows 7 Home Premium Family Pack available for a limited time, while supplies lasted.

Upgrade compatibility

There are two possible ways to upgrade to Windows 7 from an earlier version of Windows: * An in-place install (labelled "Upgrade" in the installer), where settings and programs are preserved from an older version of Windows. This option is only sometimes available, depending on the editions of Windows being used, and is not available at all unless upgrading from Windows Vista. * A clean install (labelled "Custom" in the installer), where all settings including but not limited to user accounts, applications, user settings, music, photos, and programs are erased entirely and the current operating system is erased and replaced with Windows 7. This option is always available and is required for all versions of Windows XP. The table below lists which upgrade paths allow for an in-place install. Note that in-place upgrades can only be performed when the previous version of Windows is of the same architecture. If upgrading from a 32-bit installation to a 64-bit installation or downgrading from 64-bit installation to 32-bit installation, a clean install is mandatory regardless of the editions being used.

Anytime Upgrade editions

Microsoft still supports in-place upgrades from a lower edition of Windows 7 to a higher one, using the

tool. There are currently three retail options available (though it is currently unclear whether they can be used with previous installations of the N versions). There are no family pack versions of the Anytime Upgrade editions. It was possible to use the Product Key from a Standard upgrade edition to accomplish an in-place upgrade (e.g. Home Premium to Ultimate). * Starter to Home Premium * Starter to Professional¹ * Starter to Ultimate¹ * Home Premium to Professional * Home Premium to Ultimate * Professional to Ultimate¹ ¹ Available in retail, and at the

Microsoft Store Microsoft Store (formerly known as Windows Store) is a digital distribution platform operated by Microsoft. It started as an app store for Windows 8 and Windows Server 2012 as the primary means of distributing Universal Windows Platform apps ...

Derivatives

; : On February 9, 2011, Microsoft announced Windows Thin PC, a branded derivative of Windows Embedded Standard 7 with Service Pack 1, designed as a lightweight version of Windows 7 for installation on low performance PCs as an alternative to using a dedicated

thin client In computer networking, a thin client is a simple (low-performance) computer that has been optimized for establishing a remote connection with a server-based computing environment. They are sometimes known as ''network computers'', or in th ...

device. It succeeded

Windows Fundamentals for Legacy PCs Windows Fundamentals for Legacy PCs ("WinFLP") is a thin client release of the Windows NT operating system developed by Microsoft and optimized for older, less powerful hardware. It was released on July 8, 2006, nearly two years after its Wind ...

, which was based on

Windows XP Embedded Windows XP, which is the next version of Windows NT after Windows 2000 and the successor to the consumer-oriented Windows Me, has been released in several editions since its original release in 2001. Windows XP is available in many languages. In ...

. Windows Thin PC was released on June 6, 2011. ;: Windows 7 is also currently available in two distinct forms of

Windows Embedded Windows IoT, formerly Windows Embedded, is a family of operating systems from Microsoft designed for use in embedded systems. Microsoft currently has three different subfamilies of operating systems for embedded devices targeting a wide market, ...

, named as Windows Embedded Standard 7 (known as Windows Embedded Standard 2011 prior to release, the newest being Windows Embedded Standard 7 with Service Pack 1) and Windows Embedded POSReady 7. Both versions are eligible for Extended Security Updates (ESU) for up to 3 years after their end of extended support dates. In addition, binary identical for Embedded Systems (FES) variants of Professional and Ultimate editions are also available, differing only in licensing, and with their support periods also matching their non FES variants. Mainstream support for Windows Embedded 7 Standard ended on October 13, 2015 and extended support ended on October 13, 2020. Mainstream support for Windows Embedded POSReady 7 ended on October 11, 2016 and extended support ended on October 12, 2021. Extended Security Updates (ESU) last for Windows Embedded 7 Standard until October 10, 2023. ESU for Windows Embedded POSReady 7 last until October 8, 2024.

Main editions

Special-purpose editions

Upgrade editions

Upgrade compatibility

Anytime Upgrade editions

Derivatives

Comparison chart

See also

Notes

References

Further reading