Build 10049 didn't install

Speaking about Language Pack: Build 10049 does install unexpected things, like a Korea Media Player, and Korea Messenger. But I'll deal with those eventually.

Before updating try this:
Turn off all languages other than your native one in
Control Panel - > Programs & Features -> (Left pane) Turn Windows features on or off

Check what Settings says about languages - remove any that you don't or won't be using.
Settings -> Time & Language -> Region & Language -> Languages.

I'm not sure where 10.041 stores this info - it's changed a few times, so check both 'control panels'

To be honest, I'm not sure if that will prevent the Preview Build update from overkill (installing all available languages) - worth a shot though.

10056 iso is on the web
10056.0.150405-1348.FBL_IMPRESSIVE_CLIENTENTERPRISE_VOL_X64FRE_EN-US

Syd said:

10056 iso is on the web
10056.0.150405-1348.FBL_IMPRESSIVE_CLIENTENTERPRISE_VOL_X64FRE_EN-US

I downloaded the above via my Synology NAS download station. Its now up and running on my spare PC.