Windows 8.1 build 9491

6.3.9491.0.winblue_rtm.130820-1410
Build of Windows 8.1
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OS familyWindows NT
Version number6.3
Build number9491
Build revision0
Architecturex86
Build labwinblue_rtm
Compiled on2013-08-20
SKUs
Preinstallation Environment
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Windows8.1-9491-winver.png
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Windows 8.1 build 9491 is a build of Windows 8.1. The Traditional Chinese (Taiwan) x86 variant of this build was found on a Samsung XE700T1A used by Microsoft, although the contents of the SSD containing it was completely irrecoverable, save for the main Windows Explorer executable remaining intact.[1][2] Its Recovery Environment in the aforementioned language was shared by the Chinese website BetaWorld on 5 September 2024.[3]

It is notably the last build of Windows 8.1 to be compiled before the jump to build 9600, which was compiled one day after.

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