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windows server 2012 r2 wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 features 2 editions 3 support lifecycle 4 see also 5 references 6 further reading toggle the table of contents windows server 2012 r2 17 languages العربية azərbaycanca català čeština español فارسی français हिन्दी bahasa indonesia 한국어 nederlands polski português русский türkçe українська 中文 edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikimedia commons wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia version of windows server released in 2013 not to be confused with windows server 2012 operating system windows server 2012 r2 version of the windows nt operating system screenshot of windows server 2012 r2 showing the server manager application which is automatically opened when an administrator logs on start button taskbar and the blue color of aero lite developer microsoft os family windows server working state current source model closed source shared source released to manufacturing august 27 2013 13 years ago 2013 08 27 1 general availability october 17 2013 12 years ago 2013 10 17 2 latest release september 2026 monthly update rollup 6 3 9600 23398 september 8 2026 26 days ago 2026 09 08 3 marketing target business update method windows update windows server update services sccm supported platforms x86 64 kernel type hybrid windows nt kernel default user interface windows shell gui license commercial proprietary software preceded by windows server 2012 2012 succeeded by windows server 2016 2016 official website windows server 2012 r2 archived at wayback machine support status mainstream support ended on october 9 2018 extended support ended on october 10 2023 4 paid support via the extended security updates program until october 13 2026 only for volume licensed editions part of a series of articles on windows 8 editions new features removed features windows 8 1 windows rt siblings windows phone 8 windows phone 8 1 windows server 2012 windows server 2012 r2 related windows store v t e windows server 2012 r2 codenamed windows server blue is the tenth major version of the windows nt operating system produced by microsoft to be released under the windows server brand name it was unveiled on june 3 2013 at teched north america 5 and released on october 17 of the same year 2 it is the successor to windows server 2012 and is based on the windows 8 1 codebase it is the final version of windows server to use the r2 suffix which had been used since the release of windows server 2003 r2 6 it removed support for processors without cmpxchg16b prefetchw lahf and sahf a further update formally designated windows server 2012 r2 update was released in april 2014 7 it is a cumulative set of security critical and other updates 8 windows server 2012 r2 like previous versions of windows server before it and versions after it is only compatible with 64 bit processors it was succeeded by the windows 10 based windows server 2016 mainstream support ended on october 9 2018 and extended support ended on october 10 2023 it is eligible for the paid extended security updates esu program which offers continued security updates until october 13 2026 features edit windows server 2012 r2 start screen including internet explorer 11 and essential tools for use in a server the following features are introduced in windows server 2012 r2 automated tiering storage spaces stores most frequently accessed files on fastest physical media 9 deduplication for vhd reduces the storage space for vhd files with largely similar contents by storing the similar contents only once 9 windows powershell v4 which now includes a desired state configuration dsc feature integrated office 365 support essentials edition user interface changes reflecting windows 8 1 including visible start button 10 uefi based virtual machines upgrades from driver emulators to synthetic hardware drivers to minimize legacy support faster vm deployment approximately half the time 11 internet information services 8 5 support for logging to event tracing for windows and the ability to log any request response headers to improve scalability if iis is configured with 100 or more web sites by default it will not automatically start any of them alongside this a new idle worker process page out configuration option has been added to application pools to instruct windows to page out the process if it has been idle for the idle time out period by default 20 minutes 12 server message block performance and event logging quality improvements support for hyper v live migration over smb bandwidth prioritization management and the ability to remove smb 1 0 support 13 windows deployment services support for managing wds via powershell 14 windows defender is available in a server core installation and is installed and enabled by default 15 dubious discuss ip address management ipam extended to support role based access control allowing for fine grained control over which users can view or change configurations for dhcp reservations scopes ip address blocks dns resource records etc additionally ipam can integrate with system center virtual machine manager 2012 r2 to have coordinated ip policy across both physical and virtual environments the ipam database can be stored in a sql server instance instead of windows internal database 16 group policy has a new policy cache setting which allows domain joined machines to store a copy of the group policy settings on the client machine and depending on the speed of access to the domain controller use those at startup time instead of waiting for the policy settings to download this can improve startup times on machines that are disconnected from the company network 17 new group policy settings have been added to cover new features in windows 8 1 and internet explorer 11 such as enabling disabling spdy 3 support configuring start screen layouts and detecting phone numbers in web pages 18 tls support is extended to support rfc 5077 transport layer security tls session resumption without server side state which improves performance of long running tls secured connections that need to reconnect due to session expiration hyper v role and hyper v management console are added to the essentials edition 19 windows server update services was made available for windows server 2012 r2 essentials edition 20 refs gained support for alternate data streams and automatic error correction on parity spaces 21 editions edit according to the windows server 2012 r2 datasheet published on may 31 2013 there are four editions of this operating system foundation essentials standard and datacenter 22 as with windows server 2012 the datacenter and standard editions are feature identical varying only based on licensing particularly licensing of virtual instances the essentials edition has the same features as the datacenter and standard products with some restrictions 23 support lifecycle edit microsoft originally planned to end mainstream support for windows server 2012 and windows server 2012 r2 on january 9 2018 with extended support ending on january 10 2023 in order to provide customers the standard transition lifecycle timeline microsoft extended windows server 2012 and 2012 r2 support in march 2017 by 9 months windows server 2012 reached the end of mainstream support on october 9 2018 and entered the extended support phase which ended on october 10 2023 24 25 26 microsoft announced in july 2021 that they will distribute paid extended security updates for volume licensed editions of windows server 2012 and windows server 2012 r2 for up to 3 years after the end of extended support 27 for windows server 2012 and windows server 2012 r2 they will receive updates until october 13 2026 this will mark the final end of all security updates for the windows nt 6 2 product line after 14 years 2 months and 12 days and the windows nt 6 3 product line after 13 years 1 month and 16 days see also edit microsoft servers comparison of microsoft windows versions history of microsoft windows comparison of operating systems list of operating systems references edit anderson brad 27 august 2013 today is the rtm for windows server 2012 r2 enterprise mobility and security blog microsoft 1 2 jeff meisner august 14 2013 save the date windows server 2012 r2 windows system center 2012 r2 and windows intune update coming oct 18 the official microsoft blog site home technet blogs technet blogs retrieved february 10 2014 september 8 2026 kb5123066 monthly rollup support microsoft com search product lifecycle windows server 2012 r2 microsoft com retrieved december 27 2018 damien caro june 10 2013 windows server 2012 r2 first look damien caro s blog site home technet blogs blogs technet com retrieved june 25 2013 what is windows server it glossary solarwinds august updates for windows 8 1 and windows server 2012 r2 windows experience blogwindows experience blog blogs windows com 5 august 2014 windows server 2012 r2 update kb2919355 microsoft download center 1 2 jackson joab june 5 2013 windows server 2012 r2 bulks up on storage and networking pc world idg retrieved september 20 2013 sams brad june 25 2013 windows 8 1 start button revealed in windows server 2012 r2 neowin net neowin llc retrieved september 20 2013 tulloch mitch 2013 introducing windows server 2012 r2 pdf preview release ed redmond washington microsoft press isbn 978 0 7356 8293 1 retrieved september 19 2013 what s new in iis 8 5 microsoft 14 may 2020 what s new for smb in windows server 2012 r2 31 august 2016 what s new for windows deployment services in windows server 2012 r2 31 august 2016 what s changed in security technologies in windows 8 1 25 june 2014 what s new in ipam in windows server 2012 r2 31 august 2016 what s new in group policy in windows server 2012 r2 microsoft 31 august 2016 what s new in group policy in windows server 2012 r2 group policy central 25 june 2013 fabritius david 3 september 2013 understanding licensing for windows server 2012 r2 essentials and the windows server essentials experience role the windows server essentials and small business server blog windows server 2012 r2 products and editions comparison download center microsoft 7 february 2014 retrieved 30 june 2016 resilient file system overview technet library microsoft 29 february 2012 retrieved 25 december 2013 cloud optimize your business pdf microsoft retrieved august 2 2013 mackie kurt june 20 2013 microsoft enhancing windows server 2012 r2 essentials for smbs redmondmag com retrieved june 25 2013 windows server 2012 microsoft docs archived from the original on july 28 2021 retrieved july 28 2021 microsoft extends windows server 2012 support redmondmag com redmondmag archived from the original on july 28 2021 retrieved july 28 2021 windows server 2012 nears end of life february 3 2020 archived from the original on january 26 2021 retrieved july 28 2021 product lifecycle faq extended security updates docs microsoft com archived from the original on july 29 2021 retrieved july 28 2021 further reading edit mackie kurt june 20 2013 microsoft profiles hyper v improvements in windows server 2012 r2 redmondmag com retrieved september 20 2013 best of teched 2013 what s new in hyper v in windows server 2012 r2 it pros rock at microsoft site home technet blogs blogs technet com june 10 2013 retrieved september 20 2013 top windows server 2012 r2 hyper v virtualization features petri co il june 3 2013 archived from the original on february 22 2014 retrieved september 20 2013 savill john june 3 2013 new features windows server 2012 r2 windows server 2012 content from windows it pro retrieved september 20 2013 thurrott paul june 7 2013 windows server 2012 essentials r2 preview windows server 2012 content from paul thurrott s supersite for windows winsupersite com retrieved september 20 2013 microsoft announces windows server 2012 r2 at teched 2013 north america canadian it professionals site home technet blogs blogs technet com june 3 2013 retrieved september 20 2013 v t e microsoft windows components versions history comparison criticism ms dos based 1 0 2 0 2 1 3 0 3 1 windows 9x 95 98 me windows nt base releases nt 3 1 nt 3 5 nt 3 51 nt 4 0 2000 xp pro x64 media center fundamentals for legacy pcs vista 7 8 rt 8 1 10 11 windows server server 2003 home server server 2008 ebs 2008 hpc server 2008 server 2008 r2 home server 2011 server 2012 server 2012 r2 server 2016 server 2019 server 2022 server 2025 specialized preinstallation environment multipoint server windows iot embedded compact ce 5 0 embedded ce 6 0 embedded compact 7 other embedded automotive embedded industry windows mobile pocket pc 2000 pocket pc 2002 mobile 2003 mobile 5 0 mobile 6 0 mobile 6 1 mobile 6 5 windows phone phone 7 phone 8 phone 8 1 10 mobile cancelled cairo nashville neptune odyssey 10x related development 95 xp vista editions xp vista 7 8 10 11 new features xp vista 7 8 10 11 removed features xp vista 7 8 10 11 version history phone 10 10 mobile 11 version comparison vista and xp criticism xp vista 10 windows for pen computing microsoft plus microsoft powertoys windows server essentials category retrieved from https en wikipedia org w index php title windows_server_2012_r2 oldid 1373927620 categories products introduced in 2013 microsoft windows windows server 2013 software hidden categories articles with short description short description is different from wikidata all accuracy disputes articles with disputed statements from may 2015 this page was last edited on 8 september 2026 at 20 06 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents windows server 2012 r2 17 languages add topic