Microsoft has started to push Windows 7 SP1 via Windows Update and Microsoft Download Center to all Windows 7 systems around the world, and it has also started to release the Multilingual User Interface (MUI) language packs for Windows 7 SP1 through Windows Update.

Only Windows 7 Ultimate and Windows 7 Enterprise editions is entitled for free downloads of MUI language packs. However, it’s possible to download and install the language packs on any editions of Windows 7 can make use of hacking tools such as Vistalizator to install MUI language packs on non-supported Windows editions.
A language pack allows user to change the interface display language of Windows’ dialog boxes, menus and other text to the selected language. Windows 7 SP1 MUI language packs are released as KB2483139. All language packs (MUI) of Windows 7 SP1 in DVD ISO format from MSDN and TechNet Subscriber Downloads has been leaked earlier. .
For people who wants to download the MUI language packs for Windows 7 SP1 only from official source, here’s the direct download links for both 32-bit (x86) and 64-bit (x64) Windows 7 SP1 MUI language packs from Microsoft’s Windows Update server.
Download Official 32-bit (x86) Windows 7 SP1 MUI Language Packs
Arabic: windows6.1-kb2483139-x86-ar-sa_5add6e4a36127029d431b a98d99708c44ef9b53f.exe
Bulgarian: windows6.1-kb2483139-x86-bg-bg_a8a5013e477366119cfdc 5fbda43b904755db450.exe
Chinese (Simplified): windows6.1-kb2483139-x86-zh-cn_ae61ea226215f96fc95be 33201ffc96755ac7eb5.exe
Chinese (Traditional): windows6.1-kb2483139-x86-zh-hk_411a6bb68728f12f5ced7 12d9a33fee9ebe0b0b3.exe
Croatian: windows6.1-kb2483139-x86-hr-hr_685e217ce007af8005db4 726087893d04e19dade.exe
Czech: windows6.1-kb2483139-x86-cs-cz_bb5061f4bd24437dd31a3 714e1b54318ced7e63a.exe
Danish: windows6.1-kb2483139-x86-da-dk_67fecaab0a940e2e537bc 8dcd8a9ebb8ab4ed102.exe
Dutch: windows6.1-kb2483139-x86-nl-nl_b7e1c3046b218fb45a665 ab5f5ed8a5ea8125760.exe
English: windows6.1-kb2483139-x86-en-us_783d6dd59e2ec8fb0995a 059c9c121795bde46c8.exe
Estonian: windows6.1-kb2483139-x86-et-ee_d0f798de315b696bf560b 559f6f90064687c0b7b.exe
Finnish: windows6.1-kb2483139-x86-fi-fi_5259ca6a22a981dbdee35 2dde5b8e65c2fddd407.exe
French: windows6.1-kb2483139-x86-fr-fr_f57427487dfc2f49da67c ac22480ab1f48983d22.exe
German: windows6.1-kb2483139-x86-de-de_acb9b88b96d432749ab63 bd93423af054d23bf81.exe
Greek: windows6.1-kb2483139-x86-el-gr_5aeecda7e1d689a083975 128901da8156751dfc5.exe
Hebrew: windows6.1-kb2483139-x86-he-il_1849d14777a76c7c5b4ef 766490dccc8aed5c56b.exe
Hungarian: windows6.1-kb2483139-x86-hu-hu_a7a5af62c59ab7a4e8cb0 f21242b42606b95195b.exe
Italian: windows6.1-kb2483139-x86-it-it_1d54a8d0047674fc1b5b6 f41292a0074d9fe3cc5.exe
Japanese: windows6.1-kb2483139-x86-ja-jp_bc46078938ae9129c7ce8 6a9c176fa517e4c0a3d.exe
Korean: windows6.1-kb2483139-x86-ko-kr_18f213428cc6fde96d8c7 6c6dd91446348e86ce6.exe
Latvian: windows6.1-kb2483139-x86-lv-lv_97b58149699a2e8b02bd7 cac720ac0795b51c98b.exe
Lithuanian: windows6.1-kb2483139-x86-lt-lt_297c5ee6e98ab646b14f1 492716b67cc0970fcd8.exe
Norwegian: windows6.1-kb2483139-x86-nb-no_5bd6fc76ad54b7a232d4c eb4a5f5c7c366bf90b6.exe
Polish: windows6.1-kb2483139-x86-pl-pl_c460a8c1392d7f3d35d1c 0b37e56017d3552d245.exe
Portuguese (Brazil): windows6.1-kb2483139-x86-pt-br_6e1d337b2fd56669d461e 82601aa51004fecbd24.exe
Portuguese (Portugal): windows6.1-kb2483139-x86-pt-pt_5cc92ef98ed177b2f6bba e3a0420ee2f12764fab.exe
Romanian: windows6.1-kb2483139-x86-ro-ro_d8d9b2b4c5c457fe6a7dc b09a5f645cfe77cc30c.exe
Russian: windows6.1-kb2483139-x86-ru-ru_6532a8f36ad7d15277d5d 60da92555f0fbee4daa.exe
Serbian (Latin): windows6.1-kb2483139-x86-sr-latn-cs_e3d9acfcc9f608cf7687b d3b5ee7f0d9658b7bc9.exe
Slovak: windows6.1-kb2483139-x86-sk-sk_4c7b17a6cb292b09bede4 c8731ad4f24cd09ab2a.exe
Slovenian: windows6.1-kb2483139-x86-sl-si_de7f366819e1c12954557 e3e65b7c0f059f49b67.exe
Spanish: windows6.1-kb2483139-x86-es-es_6aef75f7d83edaabc2a92 1a6b157cc7005628286.exe
Swedish: windows6.1-kb2483139-x86-sv-se_bd65af75e8995bd865d93 c8d8c8a35091499083f.exe
Thai: windows6.1-kb2483139-x86-th-th_8248f2b209d65a39ddaeb 36e1782fcc0f6664f73.exe
Turkish: windows6.1-kb2483139-x86-tr-tr_228dfa5fbaa4606b17f93 d6fcd51c8c85c0f1fd3.exe
Ukrainian: windows6.1-kb2483139-x86-uk-ua_7f01db99ad2b2d41598bf c71aaa9bd4be04b6369.exe
Download Official 64-bit (x64) Windows 7 SP1 MUI Language Packs
Arabic: windows6.1-kb2483139-x64-ar-sa_f07f2cc7b55b17076eebc eea2c2c2826b08b8f63.exe
Bulgarian: windows6.1-kb2483139-x64-bg-bg_e4c9392592ed2d4a8c7ec 68270b5140430df197a.exe
Chinese (Simplified): windows6.1-kb2483139-x64-zh-cn_2c1884b4fdf6c8e919863 69d88bbcaae01c6f187.exe
Chinese (Traditional): windows6.1-kb2483139-x64-zh-hk_285282b1e2f750eeed914 66918443b657968d977.exe
Croatian: windows6.1-kb2483139-x64-hr-hr_e7c6d648436d81466af33 1ab1ece07dd22be5fda.exe
Czech: windows6.1-kb2483139-x64-cs-cz_1ea5b71d701e2480017b4 64b6560a2987e0d8971.exe
Danish: windows6.1-kb2483139-x64-da-dk_d753d19cc1a0fe95aef21 548193393c04a6a8024.exe
Dutch: windows6.1-kb2483139-x64-nl-nl_12c90c70d408b08f51f50 0d6e974878a5d662398.exe
English: windows6.1-kb2483139-x64-en-us_9b9c8a867baff2920507f bf1e1b4a158572b9b87.exe
Estonian: windows6.1-kb2483139-x64-et-ee_b4fd94f6e461e21b7eec5 4d1e379e2807861aea2.exe
Finnish: windows6.1-kb2483139-x64-fi-fi_223465e1b382484d1d82f 8f2ccfcd9ed2f902c76.exe
French: windows6.1-kb2483139-x64-fr-fr_0f18e2a244dd9ff046641 12a82776d2bd2177798.exe
German: windows6.1-kb2483139-x64-de-de_4f4ce6bd38530b4a02199 172863b21a0cba13773.exe
Greek: windows6.1-kb2483139-x64-el-gr_583791fea2fea71725388 a746844d5be6488ca45.exe
Hebrew: windows6.1-kb2483139-x64-he-il_617029400059f0847d7d9 0d4da673ae4ed43ebd9.exe
Hungarian: windows6.1-kb2483139-x64-hu-hu_1c298d99baf7af3d830dc d1e2632eeb65d7ee395.exe
Italian: windows6.1-kb2483139-x64-it-it_6d8223c065d6974d833d0 eaa162f3ceb7680850f.exe
Japanese: windows6.1-kb2483139-x64-ja-jp_aeaf7e9b0b6c2173bf757 330017a7f655f1f8715.exe
Korean: windows6.1-kb2483139-x64-ko-kr_0ea76f748e3d5309d5681 47ad1337b2664090944.exe
Latvian: windows6.1-kb2483139-x64-lv-lv_3919fb044a307144f1fc5 5cf4313aff45cde9a46.exe
Lithuanian: windows6.1-kb2483139-x64-lt-lt_c894f0a591735553ba68f 9fb94b1b85133ca922c.exe
Norwegian: windows6.1-kb2483139-x64-nb-no_78df68604970041a6337b 4058a3e5339f79e50b4.exe
Polish: windows6.1-kb2483139-x64-pl-pl_24d00a966a7a75132c3af 5627634483d3e2d01e7.exe
Portuguese (Brazil): windows6.1-kb2483139-x64-pt-br_f8035731c55d774c95c7c 673aedfd42d52479294.exe
Portuguese (Portugal): windows6.1-kb2483139-x64-pt-pt_78485491088298110a3e7 8b7a5f95e55ff7808df.exe
Romanian: windows6.1-kb2483139-x64-ro-ro_6e7a63541f2cb534dab3d b719330fee5cfbb4e0f.exe
Russian: windows6.1-kb2483139-x64-ru-ru_0587eb296a2f04e0d3699 650d39b53ee18b97a79.exe
Serbian (Latin): windows6.1-kb2483139-x64-sr-latn-cs_5f487007933585def54c6 7087895e74e25e699a9.exe
Slovak: windows6.1-kb2483139-x64-sk-sk_f1fb8a395d7d656649830 f4f06496a5311ad572a.exe
Slovenian: windows6.1-kb2483139-x64-sl-si_84606ed6bc061c72f756b bc061621b490fb761f7.exe
Spanish: windows6.1-kb2483139-x64-es-es_fdbdf4061b960324efb9e edf7106df543ed8ce33.exe
Swedish: windows6.1-kb2483139-x64-sv-se_81051fe3083afdb4f2d1d 23752c587de9bb35025.exe
Thai: windows6.1-kb2483139-x64-th-th_dc9c0cc12ae488ed3e8dc aecb4392eef91ec213b.exe
Turkish: windows6.1-kb2483139-x64-tr-tr_07e7e3b34426fe68be813 e911d3843b941a268b7.exe
Ukrainian: windows6.1-kb2483139-x64-uk-ua_1ca449545a2bcfdeeed60 80768186fc29f163504.exe
Note: Chinese (Taiwan) or zh-tw is not available.
Simply double click on the downloaded .exe executable to install the official MUI language packs for Windows 7 SP1. After installation, follow the guide to