Windows 7 Build 7264 is the closest build to RTM build of Windows 7 been leaked in complete installation DVD ISO image format. Only English version of Windows 7 Build 7264 is leaked though, although both 32-bit (x86) and 64-bit (x64) is available. People who wants to use Windows 7 Build 7264 in other localized language can download the following language packs (MUI) to convert Windows 7 user interface to the specific language.

Download 32-bit Windows 7 Build 7264 Language Packs

English (EN-US): en-us.zip
Arabic (AR-SA): ar-sa.zip
Bulgarian (BG-BG): bg-bg.zip
Czech (CS-CZ): cs-cz.zip
Danish (DA-DK): da-dk.zip
German (DE-DE): de-de.zip
Greek (EL-GR): el-gr.zip
Spanish (ES-ES): es-es.zip
Estonian (ET-EE): et-ee.zip
Finnish (FI-FI): fi-fi.zip
French (FR-FR): fr-fr.zip
Hebrew (HE-IL): he-il.zip
Croatian (HR-HR): hr-hr.zip
Hungarian (HU-HU): hu-hu.zip
Italian (IT-IT): it-it.zip
Japanese (JA-JP): ja-jp.zip
Korean (KO-KR): ko-kr.zip
Lithuanian (LT-LT): lt-lt.zip
Latvian (LV-LV): lv-lv.zip
Norwegian (NB-NO): nb-no.zip
Dutch (NL-NL): nl-nl.zip
Polish (PL-PL): pl-pl.zip
Brazilian Portuguese (PT-BR): pt-br.zip
Portuguese (PT-PT): pt-pt.zip
Romanian (RO-RO): ro-ro.zip
Russian (RU-RU): ru-ru.zip
Slovak (SK-SK): sk-sk.zip
Slovenian (SL-SI): sl-si.zip
Serbian or Latin (SR-LATN-CS): sr-latn-cs.zip
Swedish (SV-SE): sv-se.zip
Thai (TH-TH): th-th.zip
Turkish (TR-TR): tr-tr.zip
Ukrainian (UK-UA): uk-ua.zip
Simplified Chinese (ZH-CN): zh-cn.zip
Hong Kong Chinese (ZH-HK): zh-hk.zip
Traditional Chinese (ZH-TW): zh-tw.zip

Download 64-bit Windows 7 Build 7264 Language Packs

English (EN-US): en-us.zip
Arabic (AR-SA): ar-sa.zip
Bulgarian (BG-BG): bg-bg.zip
Czech (CS-CZ): cs-cz.zip
Danish (DA-DK): da-dk.zip
German (DE-DE): de-de.zip
Greek (EL-GR): el-gr.zip
Spanish (ES-ES): es-es.zip
Estonian (ET-EE): et-ee.zip
Finnish (FI-FI): fi-fi.zip
French (FR-FR): fr-fr.zip
Hebrew (HE-IL): he-il.zip
Croatian (HR-HR): hr-hr.zip
Hungarian (HU-HU): hu-hu.zip
Italian (IT-IT): it-it.zip
Japanese (JA-JP): ja-jp.zip
Korean (KO-KR): ko-kr.zip
Lithuanian (LT-LT): lt-lt.zip
Latvian (LV-LV): lv-lv.zip
Norwegian (NB-NO): nb-no.zip
Dutch (NL-NL): nl-nl.zip
Polish (PL-PL): pl-pl.zip
Brazilian Portuguese (PT-BR): pt-br.zip
Portuguese (PT-PT): pt-pt.zip
Romanian (RO-RO): ro-ro.zip
Russian (RU-RU): ru-ru.zip
Slovak (SK-SK): sk-sk.zip
Slovenian (SL-SI): sl-si.zip
Serbian or Latin (SR-LATN-CS): sr-latn-cs.zip
Swedish (SV-SE): sv-se.zip
Thai (TH-TH): th-th.zip
Turkish (TR-TR): tr-tr.zip
Ukrainian (UK-UA): uk-ua.zip
Simplified Chinese (ZH-CN): zh-cn.zip
Hong Kong Chinese (ZH-HK): zh-hk.zip
Traditional Chinese (ZH-TW): zh-tw.zip

The ZIP archive contains lp.cab cabinet file which contains localized language resources. Here’s how to install a LIP in Windows 7, and steps to change the language of user interface in Windows 7 manually.