Windows 8.1 build 9385

6.3.9385.0.fbl_partner_out17.130415-2049
	Build of Windows 8.1
OS family	Windows NT
Version number	6.3
Build number	9385
Build revision	0
Architecture	x86, x64, ARM32
Build lab	fbl_partner_out17
Compiled on	2013-04-15
Expiration date
Timebomb	2014-01-15 (+275 days)
About dialog

Windows 8.1 build 9385 is the seventeenth partner release of Windows 8.1, which was originally shared online as a multilingual ISO containing the English, Polish and Russian languages in the x86 architecture on 1 May 2013.^[1] A x64 version was uploaded to BetaArchive on 19 January 2015. An ARM architecture version was uploaded to BetaArchive on 25 December 2019, and a British English version which is also in the ARM architecture was uploaded to the Internet Archive on 20 February 2023.^[2]

Editions and keys[edit | edit source]

Edition / SKU Name	Key
Core	2H7NK-3VJJY-HHY3Y-WM3T8-JFCRY
Professional	MTWNQ-CKDHJ-3HXW9-Q2PFX-WB2HQ
ProfessionalWMC (edition upgrade only)	MBFBV-W3DP2-2MVKN-PJCQD-KKTF7

Changes[edit | edit source]

Movie Moments received a major UI overhaul and a new icon.
The Camera app now uses a blue tile on the Start screen.
Kiosk mode has been renamed "Assigned access".

Bugs and quirks[edit | edit source]

Upgrading from Windows 8 build 9200 may cause the Windows Store and Settings applications to be rendered unusable.
This build's x86 compile bugchecks with code IRQL_NOT_LESS_OR_EQUAL when run under a processor that lacks either the No eXecute (NX) bit or the SSE2 instruction set, and is the result of a processor feature set check that is not being handled properly.
Visual artifacts may appear while using Metro applications and features.
Desktop Window Manager animation transitions do not function properly; fades do not display properly, and certain Metro UI animation transitions (such as invoking the Charms bar) do not play at all.
The winver dialog is missing in the Polish release.
Post OOBE words are mixed together in the Russian release.
Movie Moments is localized in pseudo in other languages.
Settings App is not translated in other languages.

ARM32 compile-specific[edit | edit source]

Attempting to use the Search charm in the ARM32 compile will cause the File Explorer application to crash.
It is not possible to select a startup option without a physical keyboard attached as the touch keyboard does not appear.
Opening the Camera application crashes, and causes the system to exit the application.

Updates[edit | edit source]

A minor bugfix for this partner release, under the build tag of 6.3.9390.0.fbl_partner_out17a.130422-2355, was released to partners. As it is a minor bugfix, there isn’t many differences between this and the other build. This bugfix was shared on the BetaWiki Discord server on 3 November 2024.